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Microstructure Evolution and Mechanical Properties of Heterogeneous Nano/Ultrafine-Grained Austenitic Stainless Steel Prepared by Low-Temperature Rolling and Annealing

文献类型：期刊论文

作者Liu, Jia1; Wang, Haojie1; Huang, Long2; Ma, Xing1; Zhang, Rong3; Deng, Xiangtao4; Wang, Zhaodong4
刊名STEEL RESEARCH INTERNATIONAL
出版日期2022-11-28
页码12
关键词austenitic stainless steel heterogeneous nano ultrafine-grained steel low-temperature rolling mechanical properties strain-induced martensite
ISSN号1611-3683
DOI10.1002/srin.202200658
通讯作者Wang, Haojie(wanghaojie@sut.edu.cn) ; Deng, Xiangtao(dengxt@mail.neu.edu.cn)
英文摘要An 18Cr-8Ni austenitic stainless steel is subjected to cold rolling at room temperature and low temperature (-50 degrees C) under different amounts of deformation. The samples cold rolled to 70% deformation are then annealed to obtain nano/ultrafine-grained steels with a good strength-ductility combination. The effects of cold rolling temperature and deformation amount on the microstructure evolution of austenitic stainless steel during rolling are investigated. The results reveal that low-temperature rolling reduces the stacking fault energy of austenitic stainless steel and promotes the formation of shear bands, epsilon-martensite, and alpha '-martensite. For both low-temperature and room-temperature rolling, the austenite and alpha '-martensite, austenite and epsilon-martensite, alpha '-martensite and epsilon-martensite pairs follow the Kurdjumov-Sachs (K-S), Shoji-Nishiyama (S-N), and Burgers orientation relationships, respectively. The deformation-induced martensite transformation sequence of austenitic stainless steel follows the processes gamma -> alpha' and gamma -> epsilon -> alpha'. A heterogeneous nano/ultrafine-grained structure with a grain size of 560 nm is obtained by low-temperature rolling and annealing; room-temperature rolling achieves a grain size of 690 nm. The heterogeneous nano/ultrafine-grained steel exhibits a high yield strength of 908 MPa and maintains a satisfactory total elongation of 43%.
资助项目Basic Research Project of Colleges and Universities of Education Department of Liaoning Province[LJKZ0109] ; Project of Liaoning Province's Rejuvenating Liaoning Talents Plan[XLYC2007018]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000891662600001
出版者WILEY-V C H VERLAG GMBH
资助机构Basic Research Project of Colleges and Universities of Education Department of Liaoning Province ; Project of Liaoning Province's Rejuvenating Liaoning Talents Plan
源URL[http://ir.imr.ac.cn/handle/321006/176929]  
专题金属研究所_中国科学院金属研究所
通讯作者Wang, Haojie; Deng, Xiangtao
作者单位1.Shenyang Univ Technol, Sch Foreign Studies, Shenyang 110870, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Shenyang Univ Technol, Sch Mech Engn, Shenyang 110870, Peoples R China
4.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jia,Wang, Haojie,Huang, Long,et al. Microstructure Evolution and Mechanical Properties of Heterogeneous Nano/Ultrafine-Grained Austenitic Stainless Steel Prepared by Low-Temperature Rolling and Annealing[J]. STEEL RESEARCH INTERNATIONAL,2022:12.
APA Liu, Jia.,Wang, Haojie.,Huang, Long.,Ma, Xing.,Zhang, Rong.,...&Wang, Zhaodong.(2022).Microstructure Evolution and Mechanical Properties of Heterogeneous Nano/Ultrafine-Grained Austenitic Stainless Steel Prepared by Low-Temperature Rolling and Annealing.STEEL RESEARCH INTERNATIONAL,12.
MLA Liu, Jia,et al."Microstructure Evolution and Mechanical Properties of Heterogeneous Nano/Ultrafine-Grained Austenitic Stainless Steel Prepared by Low-Temperature Rolling and Annealing".STEEL RESEARCH INTERNATIONAL (2022):12.

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来源：金属研究所

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