Monday, December 12, 2016

Bearing Design Guide: Chapter Twenty-One: Corrosion Resistance Of Some Bronzes


We are going to continue with our chapter, but first a little announcement...



And now onto...Bearing Design Guide: Chapter Twenty-One: Corrosion Resistance Of Some Bronzes


          Corrosion is defined as the eroding of a metal as a result of a reaction with its environment, or exposure to various liquids or gases.

          Some metals and alloys are naturally resistant to certain corrosive environments. The product of a corrosive film which forms when metals are subjected to corrosive attack protects them from speedy damage by virtue of this protective oxide film.

          Corrosion can occur in bronzes as a result of slow dissolution of copper and copper alloys either because no protective film is formed or because as fast as a film is formed, it enters into solution in the corroding medium.

          Outdoors, copper and copper alloys develop a relatively protective skin of sulfides, oxides or soot. The sulfides form as a result of a reaction with sulfuric acid in the atmosphere and oxides as a result of a reaction with oxygen in the air. These reactions speed up in humid and rainy climates. They would cease entirely in the absence of water.

          Galvanic corrosion is caused by compounds which are electrical conductors when in solution in water and are known as electrolytes. The ions in these electrolytes are ever ready to conduct electricity if an anode (the positive ion) and cathode (the negative ion) of any type are present.

           Solutions of carbon dioxide, sulfur dioxide, oxygen, chlorides and fluorides are condensed or precipitated from the atmosphere. When a metal is to be used where there is an electrolytes as in sea water, the coupling of metals must be close together in the EMF series; to reduce the tendency to corrode the least nobler (cathodic) material.

          Galvanic corrosion often can be prevented by separating the less noble material by insulating it with rubber or synthetic resins.

           Although aluminum alone as a base material possesses good corrosion resistance to dry atmospheres, it actually corrodes very rapidly until a surface film forms. The surface film arrests further action to sea water, many fresh waters, chemicals and foods.

          This oxide film is extremely thin and, when damaged or scratched, corrosion will reform another thin film. Aluminum, therefore, depends on the resistance of the formed oxide film to attack rather than to the base metal.

          If aluminum is coupled with a copper-based alloy as bronze in a wet atmosphere, such as in marine environments, corrosion of the aluminum will continue unabated and would be an unfavorable galvanic couple. However, in a dry atmosphere, there is no precipitable galvanic action encountered.

          The high-leaded tin bronzes, leaded tin bronzes and tin bronzes have poor resistance to most acids but good resistance to sea water, fresh water, gasolines, fuel oils, alcohols, Freons and many other mediums. But it is recommended that the copper alloys be tin-coated or plated.

          For the most corrosive resistant alloys, the aluminum bronze alloys offer the greatest protection. The aluminum bronze alloys are used for their strength primarily and extensively used in general outdoors, marine service and exposure to many acids.

Galvanic Corrosion On Propeller


          A brief list follows showing the acceptable and non-acceptable exposure to various corrosive medium by aluminum bronzes.






          In the case of manganese bronzes, which contain less than 80% copper, zinc is selectively removed from the alloy by most acids when diluted in water. Manganese bronzes can be used for marine applications, water pump rotors and in sea water.



That's it for today.  Until next time my metal loving friends...

Next Up: Chapter 22: Soldering, Brazing and Welding Of Bronze Alloys












46 comments:

  1. Its a great pleasure reading your post.Its full of information I am looking for and I love to post a comment that "The content of your post is awesome" Great work. http://kapitalbg.com

    ReplyDelete
  2. Corrosion is the compound response between the metal and the earth. Corrosion is the oxidation of the metal. The corrosion is of various sorts. how to prevent corrosion

    ReplyDelete
  3. I've been contemplating composing an extremely tantamount post in the course of the last couple of weeks, I'll most likely keep it straightforward and connection to this rather if thats cool. Much obliged (eddm®) every door direct mail prints

    ReplyDelete
  4. It will cost more to buy the hardware and work it. Get the heap and the gear choice right the first run through. heating repair waccabuc

    ReplyDelete
  5. The city or district will review the plumbing at different occasions amid the establishment to protect that the undertaking is done to the neighborhood and state plumbing codes. plumber southbury

    ReplyDelete
  6. Working in a design office is viewed as the most critical and viable apparatus in estimating the dimension of scholarly learning. Webdesigner Website Voor Professionele en Betaalbare Websites

    ReplyDelete
  7. I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post. Webdesign

    ReplyDelete
  8. From enormous partnerships to private ventures; families to people, everybody is Online. Webdesigner

    ReplyDelete
  9. I felt very happy while reading this site. This was really very informative site for me. I really liked it. This was really a cordial post. Thanks a lot! Go to site picbear to know more top account on instagram,

    ReplyDelete
  10. This is such a great resource that you are providing and you give it away for free. web design agency san francisco

    ReplyDelete
  11. Thanks for taking the time to discuss this, I feel strongly about it and love learning more on this topic. product designer

    ReplyDelete
  12. At that point they will have a vibe for their "taste" and can utilize that as an example for their site.Webdesign

    ReplyDelete
  13. I have been checking out a few of your stories and i can state pretty good stuff. I will definitely bookmark your blog get instagram followers free app android

    ReplyDelete
  14. It additionally urges organizations to create inventive methods of publicizing, conveying and supporting their item and administrations. best place to buy a cheap domain name

    ReplyDelete
  15. Quality and significant substance was presently the way to positioning in the web crawlers. Webdesignlab

    ReplyDelete
  16. . Web designers simply yield to every single eccentricity of their customers however then toward the end they wind up getting come up short on and feeling baffled, rebuked and fatigued. Webdesign

    ReplyDelete
  17. We’ve been creating elegant digital printing for over 20 years. Right from the start of the digital printing revolution, in fact. In that time we have grown with you, our clients. And the thing is, like any important relationship check our website for more info custom stickers printing

    ReplyDelete
  18. If we print hologram stickers and keep doing trade in the similar technique and make no alteration then sooner or later, we will be abandoned by our clients. Holograms assist your customers to know your products authenticity and reality. It is extremely vital and significant to select the correct hologram sticker printing

    ReplyDelete
  19. For instance, Google presently puts their own informal organization, Google Besides, into its query items.Webdesign bureau

    ReplyDelete
  20. Your Post is very informative. If you are looking for the new vape subscription box then you must get to our company site and check out new box styles to pack your products in them.

    ReplyDelete
  21. Custom Printing Services co.uk. it is the best printing services and the follow my website new technology printing in the best works try the link open. thanks custom packaging uk custom packaging uk

    ReplyDelete
  22. bespoke packaging boxes At Bespoke Packaging UK we strongly believe in the interests of bespoke packaging, which has multiple benefits.

    ReplyDelete
  23. It is very informative post thanks for sharing the information.
    Branding Mailer boxes
    Die Cut Dover

    ReplyDelete
  24. Good pictures and great post very informative thanks for sharing with us.
    bulk Welcome boxes
    bulk Gourmet boxes for sale

    ReplyDelete

  25. Took me time to read all the comments, but I really enjoyed the article. It proved to be Very helpful to me and I am sure to all the
    commenters here! It’s always nice when you can not only be informed, but also entertained!

    visit my blog:: ** 부산달리기
    (jk)

    ReplyDelete
  26. surprised why this coincidence didn’t came about earlier! I bookmarked it 에볼루션카지노

    ReplyDelete
  27. The Forge on Dyer is a training, performance, and recovery studio with a focus on whole body wellness. Our purpose is to provide a private training studio for personal trainers and their clients without a monthly membership fee. In addition to a studio full of functional training equipment and educated trainers.
    We offer Movement Therapy Sessions along with 30-minute, 60 minute and 90-minute massage sessions.personal training in dallas The Forge on Dyer is a training, performance, and recovery studio with a focus on whole body wellness. The Forge on Dyer provides a space for performance and recovery therapies and currently offers Neuro Kinetic Therapy (NKT)
    Contact Us:
    Location: 5615 Dyer St. Dallas, TX 75206
    Website: https://theforgeondyer.com
    Phone: + 1 469 487 6399
    Email: kyle.osteen@theforgeondyer.com
    Hours:
    Sunday7:00 AM–10:00 PM
    Monday7:00 AM–10:00 PM
    Tuesday7:00 AM–10:00 PM
    Wednesday7:00 AM–10:00 PM
    Thursday7:00 AM–10:00 PM
    Friday7:00 AM–10:00 PM
    Saturday7:00 AM–10:00 PM

    ReplyDelete
  28. Any offer of securities is qualified in its entirety by its own offering documents. A prospectus, Trusts Triple Net Cash Flow or offering memorandum must be preceded or accompanied by any offer of sale and read in conjunction with the offering documents in order to understand fully all the implications and risks of an offering to which it relates.

    ReplyDelete
  29. thanks for the submit. I am a big fan of the weblog, i've even positioned a bit bookmark right on the tool bar of my firefox you will be satisfied to discover! This is genuinely informative blog for students, roof contractor west palm seaside hold up the good paintings. Thanks for posting this. Commercial cleansing service west palm seashore you maximum surely have built this weblog website into something unique. You made some suitable great points there. I did a search on the subject and determined many human beings will consider your blog. 먹튀검증

    ReplyDelete
  30. this is this kind of first rate resource which you are providing and also you deliver it away at no cost. I love seeing blog that understand the price. Im glad to have found this submit as its such an exciting one! I'm continually searching for great posts and articles so i suppose im lucky to have discovered this! I am hoping you will be including more in the future. That is the fantastic attitude, despite the fact that is simply now not assist to make every sence by any means preaching about that mather. Wow, what a superb put up. I simply determined this to an awful lot informatics. It's far what i used to be trying to find. I would really like to signify you that please hold sharing such type of data. Thanks . I discovered your blog the usage of msn. That is a very nicely written article. I'm able to make certain to bookmark it and go back to read greater of your beneficial information. Thank you for the submit. I’ll truely comeback. I assume that is an informative put up and it's miles very beneficial and informed. Consequently, i would like to thanks for the efforts you have made in writing this newsletter. Quite appropriate post. I've just stumbled upon your blog and enjoyed analyzing your weblog posts very lots. I'm looking for new posts to get extra treasured data. Big thank you for the useful info. I would love to say that this blog surely satisfied me to do it! Thank you, excellent post. Notable information! I latterly came across your blog and were reading alongside. I concept i would depart my first remark. I don’t recognise what to mention except that i have. Through this publish, i know that your true information in gambling with all the pieces become very helpful. I notify that that is the first vicinity wherein i discover troubles i have been trying to find. You have got a smart yet attractive manner of writing. I'm happy i found this web web site, i couldn't discover any understanding on this remember previous to. Additionally function a site and in case you are ever inquisitive about performing some vacationer writing for me if viable sense loose to permit me recognise, im usually look for people to check out my internet site. I admire the whole thing you have got added to my understanding base. Admiring the effort and time you positioned into your blog and specific information you provide. Thanks. Absolutely i enjoy your website with powerful and useful facts. It's far covered very first-class put up with a whole lot of our assets. Thank you for share. I revel in this submit 안전놀이터리스트

    ReplyDelete
  31. high-quality article. Think so new kind of factors have incorporated into your article. Sitting tight on your subsequent article . I am happy to locate this post very beneficial for me, because it carries lot of records. I always opt to read the satisfactory and happy i discovered this thing in you publish. Thanks . This surely allows me in my paintings. Lol, thanks to your remark! Wink satisfied you determined it useful . These are just a couple of things to reflect onconsideration on while searching out sports activities having a bet books and structures. Right day! The manner you have written your publish is so first-rate. Very expert . Preserve scripting this super publish. Admiring the time and effort you positioned into your weblog and particular facts you provide! Happy to chat your weblog, i seem to be forward to extra dependable articles and that i assume we all want to thank such a lot of top articles, blog to share with us. First rate post i ought to say and thanks for the facts. Schooling is simply a sticky situation. But, continues to be some of the leading subjects of our time. I appreciate your post and stay up for greater . I am for the primary time right here. I found this board and i in finding it absolutely beneficial & it helped me out lots. I am hoping to offer some thing again and help others which include you helped me 먹튀검증

    ReplyDelete
  32. thanks for this high-quality put up, i locate it very thrilling and very well concept out and prepare. I sit up for analyzing your paintings within the destiny. That is my first visit on your net journal! We are a set of volunteers and new activities in the same forte. Website gave us useful statistics to work. Thank you for the weblog loaded with such a lot of information. Stopping via your weblog helped me to get what i was seeking out. High-quality internet site! I adore the way it is straightforward on my eyes it is. Thank you for helping humans get the data they need. Top notch stuff as ordinary. Maintain up the superb paintings!!! I study your weblog submit and that is high-quality weblog publish.. Thank you for taking the time to proportion with us. Have a pleasant day . The writer has impressed me with the coolest pleasant paintings right here. I'll make sure that i proportion this newsletter with as many humans as i can. I think it is important to raise attention about this subject. The best manner to do so is by way of sharing. Extraordinary blog. I enjoyed investigating your articles. That is to a super diploma an first rate investigated for me. I've bookmarked it and i am suspecting examining new articles. Keep doing staggering! Admiring the time and effort you positioned into your weblog and distinct data you provide! The net website online is lovingly serviced and saved as a lot as date. So it must be, thank you for sharing this with us. I’ve been attempting to find some first rate stuff on the concern and have not had any success up until this factor, you just were given a new largest fan! I found your this post at the same time as looking for some associated facts on weblog seek... Its a very good put up.. Maintain posting and update the data . That is a tremendous article and incredible read for me. It's my first go to to your blog, and i have found it so useful and informative in particular this . I examine your blog submit and this is exceptional weblog publish.. Thanks for taking the time to proportion with us. Have a pleasant day . The net website is lovingly serviced and saved as lots as date. So it must be, thank you for sharing this with us 안전토토

    ReplyDelete
  33. i really playing each little little bit of it. It is a high-quality website and satisfactory proportion. I need to thanks. Exact task! You men do a notable blog, and have a few super contents. Maintain up the coolest paintings. What a brilliant submit i've stumble upon and believe me i have been seeking out for this similar kind of post for past a week and hardly ever came across this. Thanks very a lot and could look for extra postings from you. You've finished in outstanding paintings. T suggest to my frtends ind personilly wtll certitnly dtgtt. T'm conftdent they may be gitned from thts internet site. Took me time to read all the feedback, however i in reality loved the object. It proved to be very helpful to me and i am positive to all of the commenters here! It’s constantly exceptional while you can't best be informed, however also entertained . Effective website online, in which did u give you the records in this posting? I am pleased i found it though, ill be checking again quickly to discover what extra posts you consist of 먹튀사이트

    ReplyDelete
  34. i am appreciative of your assistance and sit up for your continuing to work on our account. I clearly recognize the kind of topics you submit here. Thanks for the submit. Your paintings is excellent and that i recognize you and hopping for a few more informative posts. I havent any word to appreciate this put up..... Without a doubt i am inspired from this publish.... The individual that create this post it changed into a outstanding human.. Thank you for shared this with us. Thanks for a exquisite proportion. Your article has proved your tough work and experience you have got got in this area. First rate . I like it analyzing. Wow... I’m going to examine this newsletter. I’ll make sure to return returned later... I’m so happy that you simply shared this beneficial data with us. Please live us knowledgeable like this, we are thanks plenty for giving all and sundry an tremendously special possiblity to check hints from right here. Normally i don’t examine publish on blogs, however i want to mention that this write-up very pressured me to try and accomplish that! Your writing fashion has been amazed me. Thanks, very pleasant publish. Tremendous guide! Chatting approximately how precious the whole digesting. I am hoping to learn from manner greater faraway from you. I understand you’ve splendid look and additionally view. I manifest to be very much contented using records. Terrific items from you, man. I’ve unde rstand your stuff previous to and you’re just extraordinarily incredible. I absolutely like what you've got acquired here, really like what you are pronouncing and the way in that you say it. You make it pleasing and you continue to cope with to maintain it wise. I can't wait to read a lot greater from you. This is truely a remarkable internet website. my brother recommended i may also like this blog. He became totally proper. This put up sincerely made my day. You cann’t agree with just how so much time i had spent for this information! Thank you! I study a variety of stuff and i discovered that the way of writing to clearifing that precisely need to say turned into superb so i'm inspired and ilike to come again in destiny.. Hiya, i think that i noticed you visited my website thus i got here to “return the prefer”. I'm searching for things to decorate my net website! I assume its ok to apply a number of your ideas! This is the extremely good mind-set, despite the fact that is just no longer assist to make each sence whatsoever preaching approximately that mather. Virtually any approach many thank you similarly to i had endeavor to sell your very own article in to delicius however it is apparently a catch 22 situation using your records websites can you please recheck the concept. Thanks once more. 안전놀이터

    ReplyDelete
  35. splendid records in your weblog, thanks for taking the time to proportion with us. Outstanding insight you have in this, it's excellent to discover a internet site that information so much data approximately distinctive artists. On this problem internet page, you will see my best records, make certain to look over this level of detail. Amazing put up i have to say and thank you for the facts. Schooling is without a doubt a sticky difficulty. But, remains most of the main subjects of our time. I respect your submit and sit up for extra 먹튀검증소

    ReplyDelete
  36. hi. Cool post. There’s an difficulty with your site in chrome, and you may want to check this… the browser is the market leader and a very good detail of people will omit your notable writing due to this problem. Very thrilling topic, thanks for posting. “the deepest american dream is not the hunger for cash or repute it is the dream of settling down, in peace and freedom and cooperation, inside the promised land.” by scott russell sanders.. Your website is genuinely cool and that is a splendid inspiring article. 먹튀검증

    ReplyDelete
  37. notable put up i should say and thank you for the statistics. Schooling is absolutely a sticky situation. But, is still most of the leading subjects of our time. I recognize your post and look forward to more. I just observed this weblog and feature excessive hopes for it to keep. Hold up the exquisite paintings, its tough to locate proper ones. I have added to my favorites. Thanks. Its a wonderful delight studying your publish. Its full of facts i am searching out and i love to submit a remark that "the content of your post is exquisite" notable paintings. Best publish! That is a completely best weblog that i'm able to definitively come again to more instances this year! Thank you for informative post. 메리트카지노

    ReplyDelete
  38. on this first rate plan of things you get an a+ for exertion. Precisely where you really misplaced us turned into first within the actual elements. As it is stated, subtleties represent the identifying moment the contention.. Additionally, that couldn't be extensively greater proper in this text. Having said that, permit me say to you exactly what tackled process. The writing is simply captivating and this is in all possibility why i am placing forth an try to observation. I don't surely make it an ordinary propensity for doing that. Furthermore, despite the reality that i can absolutely see a leaps in cause you think of, i am no longer positive of exactly the way you seem to interface the mind which make your selection. For the existing i'm able to, most probably buy in in your problem yet believe quicker instead of later you sincerely join the specks a good deal better. Woah! I am truly adoring the layout/subject matter of this web page. It is primary, yet powerful. A ton of instances it's tough to get that splendid equilibrium" among convenience and look. I should say you have got labored successfully with this. Moreover, the weblog stacks short for me on chrome. Unusual blog! Good day! This publish couldn't be composed any higher! Seeing this put up helps me to don't forget my beyond flat mate! He generally continued lecturing approximately this. I'll increase this text to him. Simply positive he can have an exquisite perused. Much obliged for sharing! Hey cool website!! Man .. Lovable .. Astounding .. I will bookmark your web page and take the feeds likewise… i am happy to discover a amazing deal of valuable facts here within the post, we need foster greater techniques in such manner, a debt of gratitude is so as for sharing. . . . . . High-quality! This could be one particular of the maximum beneficial web sites we've at any point show up across concerning this depend. Basically remarkable. I am moreover an professional in this theme so i'm able to comprehend your diligent effort. Splendid installation, distinctly enlightening. Hi there! I'm grinding away surfing round your blog from my new apple iphone! Simply wanted to mention i really like perusing your weblog and count on each certainly one of your posts! Hold up the top notch paintings! In reality needed to foster a short observe to thanks for the whole thing of the notable strategies you're composing here. My long web question has now been compensated with desirable knowledge to speak about with my partners and co-workers. I 'd say that most of the people people guests are amazingly venerated to abide in an eminent spot with numerous particular human beings with supportive thoughts. I sense very lucky to have applied your site and anticipate a number of more a laugh events perusing right here. A whole lot obliged to you once more for a first-rate deal of factors. Woah! I am in reality adoring the format/subject of this weblog. It is straightforward, yet successful. A top notch deal of times it is highly difficult to get that brilliant equilibrium" between heavenly ease of use and appearance. I must say you've got worked clearly hard with this. Also, the blog stacks very short for me on chrome. Heavenly weblog! 먹튀검증

    ReplyDelete
  39. great publish i ought to say and thank you for the information. Training is in reality a sticky concern. However, is still the various main topics of our time. I appreciate your submit and look forward to more. i am for the first time here. I found this board and that i in finding it certainly beneficial & it helped me out loads. I'm hoping to offer some thing again and assist others which include you helped me. I am hoping that it doesnt disappoint me as a whole lot as this one. I suggest, i realize it was my choice to read, however i virtually idea you've got something thrilling to mention. All i hear is a bunch of whining approximately some thing that you could restore if you werent too busy searching out interest. I have read your article; it's far very informative and beneficial for me. I recognize the treasured statistics you provide in your articles. Thanks for posting it. Your content is not anything brief of excellent in lots of methods. I think that is enticing and eye-opening material. Thank you a lot for being concerned approximately your content and your readers. That is a superb article, given so much data in it, those type of articles continues the users interest in the website, and keep on sharing extra ... Desirable good fortune . First rate info! I lately got here across your weblog and had been studying alongside. I thought i would leave my first comment. I don’t recognize what to say except that i have 메이저사이트

    ReplyDelete
  40. undeniably believe that which you said. Your favorite motive seemed to be on the internet the easiest element to have in mind of. I say to you, i honestly get irked even as different folks remember concerns that they simply do no longer realise about. You controlled to hit the nail upon the best and mentioned out the complete aspect without having side-results , different oldsters can take a signal. Will possibly be returned to get extra. Thanksprecise day! I simply want to offer you a big thumbs up for the high-quality information you’ve got here in this publish. I'm coming lower back to your web site for greater quickly. I’m excited to discover this website. I need to to thank you for ones time for this remarkable examine!! I without a doubt appreciated each bit of it and that i have you ever ebook marked to observe new stuff in your internet web page. Oh my goodness! Staggering article dude! Many thank you, but i'm going through difficulties together with your rss. I don’t understand the reason why i can’t join it. Is there all of us else getting same rss problems? Everybody that knows the answer will you kindly reply? Thanx. 메이저놀이터

    ReplyDelete
  41. hiya, i think your website is probably having internet browser compatibility troubles. Once i check your weblog in safari, it seems exceptional but when commencing in internet explorer, it has some overlapping issues. I simply desired to provide you a quick heads up! Other than that, outstanding internet site! Hello, i do suppose this is a superb web web site. I stumbledupon it �� i may also revisit all over again when you consider that i've stored as a favorite it. Money and freedom is the finest way to trade, may additionally you be wealthy and maintain to guide different humans. I’m more than happy to find out this internet site. I want to to thank you for your time for this specifically super read!! I truly preferred every little bit of it and i have you ever e-book-marked to observe new stuff on your internet site. 토토사이트

    ReplyDelete
  42. thank you for penning this simple and thrilling weblog. It's miles very easy to apprehend. I'm absolutely inspired and need to realize your efforts. I found a massive content material on this blog which is very attractive and new for me as a ordinary reader. I loved it. Moreover, i preferred the pointers that you have shared in it. Please provide you with new and interesting thoughts in addition to i can’t wait to read more thrilling thoughts from you. Incredible job you probably did as i saw your new blog which offers fine emotions and encourages me in my destiny steps. Thanks for importing this specified post. This weblog is simple to seize subscribers and appeal to the reader. I am feeling proud to be your subscriber; your publish is so excellent. Keep it up. 토토사이트

    ReplyDelete
  43. Desert Safari Dubai combines pure Arabian adventure with Bedouin-style fun. IT is one of the outstanding familiar sights in the UAE. This tour in the Arabian desert is jam-packed with jaw-dropping adventure and energizing playful experiences. Additionally, taking this tour a must activity during your visit to Dubai. This Dubai Desert Safari tour includes a 4X4 dune drive over Arabian dunes, a camel ride, a horseback ride, ATV riding, and falcon photos. visit Dubai Desert safari tour packges for more detailes.

    ReplyDelete
  44. Thanks for magnificent posting! I genuinely delighted in understanding it, you are an extraordinary author. I will make sure to bookmark your blog and will return what’s to come.
    Try to check my webpage visiting card design online free

    ReplyDelete