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Wear of journal bearings, consisting of cobalt-based Tribaloy T-800 bushings and carbide-coated 316L stainless steel (316L SS) sleeves, was evaluated in a molten zinc–aluminum alloy at different speeds and loads. It was found that these bearings experienced much less wear in comparison with the commonly used Stellite 6 bearings under similar conditions. There appeared to be a threshold load level...
Wear of cobalt-based alloys coupled with different materials was evaluated in molten zinc. A highly deformed worn surface was formed on a cobalt-based alloy running against itself, evidenced by the wide and deep wear grooves. Wear behaviour of the cobalt-based alloys improved in terms of severity of the wear grooves when paired with dissimilar materials. The alloys had relatively even wear against...
A full-journal submerged bearing test rig was built to evaluate the friction and wear behavior of materials in zinc alloy baths. Some cobalt- and iron-based superalloys were tested using this rig at conditions similar to those of a continuous galvanizing operation (load and bath chemistry). Metallographic and chemical analyses were conducted on tested samples to characterize the wear. It was found...
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