Micro-abrasion resistance of thermochemically treated steels in aqueous solutions: Mechanisms, maps, materials selection (CROSBI ID 133920)
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Podaci o odgovornosti
Mathew, M. T. ; Stack, M. M. ; Matijević, Božidar ; Rocha, L. A. ; Ariza, E.
engleski
Micro-abrasion resistance of thermochemically treated steels in aqueous solutions: Mechanisms, maps, materials selection
The area of micro-abrasion is an interesting and relatively recent area in tribo-testing methodologies, where small particles of less than 10µ ; ; ; m are employed between interacting surfaces. It is topical for a number of reasons, its direct relation to the mechamisms of the wear process in bio-tribological applications, ease in conducting tests and good repeatability of the test results. It has widespread applications in conditions used in the space and offshore industries to bio-engineering for artificial hip joints and dentistry. There have been many recent studies on the micro-abrasion performance of materials, ranging from basic metals to nano-structured coatings. However, no significant work is reported on the microabrasion resistance of thermo-chemically treated steels. Hence this paper looks at the performance of two thermo- chemically treated steels, TENIFER bath nitride stainless steel (T-SS) and Vanadized carbon steel (V-CS) in such conditions with reference to the stainless steel (SS) by varying the applied load and sliding distance. The results indicated the T-SS demonstrates exceptionally poor resistance to micro-abrasion. It was observed that heat treatment process and properties of the hardened layer (hardness and thickness) are extremely important in determining the micro-abrasion resistance of such steels. Finally, the results were used to develop micro-abrasion mechanism and wastage maps, which can be used to optimize the surface treated materials for micro-abrasion resistance.
thermochemical treatment; TENIFER; vanadizing; maps; micro-abrasion; mechanisms
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Povezanost rada
Metalurgija, Računarstvo, Rudarstvo, nafta i geološko inženjerstvo