Wear characteristics of a new type austenitic stainless steel |
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Authors: | Jianjian Ye Zhiwei Lai Yuhua Wen Ning Li |
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Affiliation: | (1) College of Manufacturing Science and Engineering, Sichuan University, Chengdu, 610065, People’s Republic of China; |
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Abstract: | In order to solve the problem of the poor wear resistance in conventional austenitic stainless steels, a new type austenitic
stainless steel was designed based on Fe–Mn–Si–Cr–Ni shape memory alloys in this article. Studies on its wear resistance and
wear mechanism have been carried out by comparison with that of AISI 321 stainless steel using friction wear tests, X-ray
diffraction, scanning electron microscope. Results showed that the wear resistance of Fe–14Mn–5.5Si–12Cr–5Ni–0.10C alloy was
better than that of AISI 321 stainless steel both in dry and oily friction conditions owing to the occurrence of the stress-induced
γ → ε martensitic phase transformation during friction process. This article also compared the corrosion performance of the
two stainless steels by testing the corrosion rate. Results showed that the corrosion rate of Fe–14Mn–5.5Si–12Cr–5Ni–0.10C
alloy was notably lower in NaOH solution and higher in NaCl solution than that of AISI 321 stainless steel. |
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