The effect of applied compressive stress on the diffusion of carbon in carbon supersaturated S-phase layer

SURFACE & COATINGS TECHNOLOGY

卷:331

Article

Li, Wei¹  Guo, Wei¹  Zhu, Xu¹  Jin, Xuejun²  Li, Xiaoying³  Dong, Hanshan³ 

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China

[3] Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England

关键词: Stainless steels;    S-phase;    Expanded austenite;    Hydrostatic compressive stress;    Carbon diffusion;   

DOI  :  10.1016/j.surfcoat.2017.10.035

来源: Elsevier

【 摘 要 】

In this study, hydrostatic compressive stresses are applied on the prior-carburized samples of 316 ASS to discover the relationship between interstitial diffusion process and the applied stresses. Carbon diffusion profiles are compared and concentration dependent diffusion coefficients are discussed to further advance scientific understanding of diffusion process in supersaturated S-phase. The experimental results demonstrate that the applied compressive stress can retard the fast diffusion process comparing to the unstressed one. Based on theoretical modelling, the effect of the applied hydrostatic compressive stresses on the diffusion of carbon in carbon supersaturated 316 austenitic stainless steel is discussed.

【 授权许可】

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