Experimental and numerical analysis of residual stress in carbon-stabilized expanded austenite. (December 2018)

• Record Type: Journal Article
• Authors: Peng, Yawei; Liu, Zhe; Jiang, Yong; Wang, Bo; Gong, Jianming; Somers, Marcel A.J.
• Is Part Of: Scripta materialia. Number 157(2018)
• Page Start: 106
• Page End: 109
• Publication Date: 2018-12
• Subjects: Expanded austenite -- Surface treatment -- Residual stress -- X-ray diffraction -- Numerical analysis; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.08.006
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Expanded austenite obtained by gaseous carburizing of stainless steel was investigated with X-ray diffraction to determine composition-depth and residual stress-depth distributions. Avoiding ghost stress effects in the analysis of X-ray diffraction data, the obtained composition- and stress-depth profiles are in excellent quantitative agreement with those obtained with other techniques. The residual stress-depth profile was attempted calculated from the composition-depth profile assuming elastic-plastic accommodation of the lattice expansion. In the model, composition-dependence of Young's modulus, yield stress and work hardening exponent were considered. Excellent quantitative agreement was achieved between the experimental and numerical residual stress-depth profiles. Graphical abstract: Unlabelled Image