Excellent low temperature superplasticity and its deformation mechanism in nano/ultrafine grained Fe-17Cr-6Ni stainless steel

doi:10.1016/j.jmrt.2024.09.037

IMR OpenIR

	Excellent low temperature superplasticity and its deformation mechanism in nano/ultrafine grained Fe-17Cr-6Ni stainless steel
	Lei, Chengshuai 1; Liu, Hongwei 1; Deng, Xiangtao 2; Li, Xiaolin 3; Wang, Zhaodong 2
通讯作者	Deng, Xiangtao(dengxiangtao123@163.com) ; Li, Xiaolin(xiaolinli@nwpu.edu.cn)
	2024-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	33 页码:61-69
摘要	Superplastic deformation typically occurs in non-ferrous metals at high temperatures, which results in severe surface oxidation and high energy consumption. In this study, we designed and manufactured a nano/ultrafine-grained stainless steel with a dual-phase microstructure that exhibits excellent low-temperature superplastic deformation capability. A maximum tensile elongation of approximately 500% was achieved when the tensile test was conducted at 700 degrees C with an initial strain rate of 5 x 10(-4) s(-1). Even after a 500% tensile elongation, the austenite grains in the gauge section of the tensile specimen still maintained an equiaxed grain shape, and the texture also weakened significantly, indicating that grain boundary sliding and grain rotation dominated the deformation process during superplastic flow. The outstanding superplasticity is mainly attributed to the dual-phase microstructure composed of nano/ultrafine austenite grains and martensite.
关键词	Nano/ultrafine grained steel Reverse phase transformation Low temperature superplastic deformation Grain boundary sliding Grain rotation Texture
资助者	National Natural Science Foundation of China ; National Basic Research Program, China
DOI	10.1016/j.jmrt.2024.09.037
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52201053] ; National Natural Science Foundation of China[52274380] ; National Natural Science Foundation of China[U23A20613] ; National Basic Research Program, China[2022YFB3705300]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001315308300001
出版者	ELSEVIER
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190092
专题	中国科学院金属研究所
通讯作者	Deng, Xiangtao; Li, Xiaolin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110004, Peoples R China 3.Northwestern Polytech Univ, Ctr Adv Lubricat & Seal Mat, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
推荐引用方式 GB/T 7714	Lei, Chengshuai,Liu, Hongwei,Deng, Xiangtao,et al. Excellent low temperature superplasticity and its deformation mechanism in nano/ultrafine grained Fe-17Cr-6Ni stainless steel[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,33:61-69.
APA	Lei, Chengshuai,Liu, Hongwei,Deng, Xiangtao,Li, Xiaolin,&Wang, Zhaodong.(2024).Excellent low temperature superplasticity and its deformation mechanism in nano/ultrafine grained Fe-17Cr-6Ni stainless steel.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,33,61-69.
MLA	Lei, Chengshuai,et al."Excellent low temperature superplasticity and its deformation mechanism in nano/ultrafine grained Fe-17Cr-6Ni stainless steel".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 33(2024):61-69.