The soften mechanisms of martensitic heat resistant steels during hot deformation

doi:10.1088/1757-899X/242/1/012012

IMR OpenIR

	The soften mechanisms of martensitic heat resistant steels during hot deformation
	Zhang,Wenfeng 1; Liu,Yunqiang 1; Ye,Dong 1; Liu,Xiaogang 1; Yan,Wei 2
	2017-09-01
发表期刊	IOP Conference Series: Materials Science and Engineering
ISSN	1757-8981
卷号	242 期号:1
摘要	Abstract Hot deformations for the experimental steels were carried out in the temperature range of 900-1200 °C and the strain rate range 10-3-100 s-1. In this study, the critical condition for dynamic recrystallization (DRX) was determined by a cooperation of the minimum value of –(?θ/?σ) and the deviation point of the linear slope of θ-σ curve. From the analysis, it was found that only one slope ratio of critical strain, εc versus critical stress, σc appeared in the 9Cr and 10Cr steels, whilst two different slopes in P92 and NS steels due to the augmentation of auxiliary softening effect of the dynamic strain-induced transformation (DSIT). The results also exhibited that ln(Z) kept an approximate positive linear relationship with ln(εc) below the value of 40, but barely changed beyond it. However, the ln(σc) value increased continuously with the rise of the ln(Z) value at a smaller growth rate after the value of ln(Z) reached 40 than that of the initial part.
DOI	10.1088/1757-899X/242/1/012012
语种	英语
WOS记录号	IOP:1757-8981-242-1-012012
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/80508
专题	中国科学院金属研究所
作者单位	1.Guangxi Colleges and Universities Key Laboratory of Robot & Welding, Guilin University of Aerospace Technology, Guilin 541004, China. 2.Institute of metal research, CAS, Shenyang 110016, China
推荐引用方式 GB/T 7714	Zhang,Wenfeng,Liu,Yunqiang,Ye,Dong,et al. The soften mechanisms of martensitic heat resistant steels during hot deformation[J]. IOP Conference Series: Materials Science and Engineering,2017,242(1).
APA	Zhang,Wenfeng,Liu,Yunqiang,Ye,Dong,Liu,Xiaogang,&Yan,Wei.(2017).The soften mechanisms of martensitic heat resistant steels during hot deformation.IOP Conference Series: Materials Science and Engineering,242(1).
MLA	Zhang,Wenfeng,et al."The soften mechanisms of martensitic heat resistant steels during hot deformation".IOP Conference Series: Materials Science and Engineering 242.1(2017).