SURFACE Nb-ALLOYING ON 0.4C–13Cr STAINLESS STEEL: MICROSTRUCTURE AND TRIBOLOGICAL BEHAVIOR

Shengwang Yu, Kai You, Xiaozhen Liu, Yihui Zhang, Zhenxia Wang and Xiaoping Liu
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Shengwang Yu: Research Institute of Surface Engineering, Taiyuan University of Technology, No.79 Yingze Street, Taiyuan 030024, Shanxi, P. R. China
Kai You: Research Institute of Surface Engineering, Taiyuan University of Technology, No.79 Yingze Street, Taiyuan 030024, Shanxi, P. R. China
Xiaozhen Liu: Research Institute of Surface Engineering, Taiyuan University of Technology, No.79 Yingze Street, Taiyuan 030024, Shanxi, P. R. China
Yihui Zhang: Research Institute of Surface Engineering, Taiyuan University of Technology, No.79 Yingze Street, Taiyuan 030024, Shanxi, P. R. China
Zhenxia Wang: Research Institute of Surface Engineering, Taiyuan University of Technology, No.79 Yingze Street, Taiyuan 030024, Shanxi, P. R. China
Xiaoping Liu: Research Institute of Surface Engineering, Taiyuan University of Technology, No.79 Yingze Street, Taiyuan 030024, Shanxi, P. R. China

Surface Review and Letters (SRL), 2016, vol. 23, issue 04, 1-7

Abstract: 0.4C–13Cr stainless steel was alloyed with niobium using double glow plasma surface alloying and tribological properties of Nb-alloyed steel such as hardness, friction and wear were measured. Effects of the alloying temperature on microstructure and the tribological behavior of the alloyed steel were investigated compared with untreated steel. Formation mechanisms of Nb-alloyed layers and increased wear resistance were also studied. The result shows that after surface Nb-alloying treatment, the 0.4C–13Cr steel exhibits a diffusion adhesion at the alloyed layer/substrate interface and improved tribological property. The friction coefficient of Nb-alloyed steel is decreased by about 0.3–0.45 and the wear rate after Nb-alloying is only 2–5% of untreated steel.

Keywords: 0.4C–13Cr stainless steel; Surface Nb-alloying; Carbide; Tribological property (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0218625X16500177

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