Effect of aging temperature on the austenite reversion and mechanical properties of a Fe-10Cr-10Ni cryogenic maraging steel

doi:10.1016/j.jmrt.2020.12.096

IMR OpenIR

	Effect of aging temperature on the austenite reversion and mechanical properties of a Fe-10Cr-10Ni cryogenic maraging steel
	Zhang, Honglin 1,2,3,4; Ji, Xiang 5; Ma, Dongping 6; Tong, Min 4; Wang, Taijiang 6; Xu, Bin 1,3,4; Sun, Mingyue 1,3,4; Li, Dianzhong 3,4
通讯作者	Xu, Bin()
	2021-03-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	11 页码:98-111
摘要	Fe-10Cr-10Ni cryogenic maraging steel is one of the key candidate materials applied in harsh cryogenic condition due to its high strength and good cryogenic toughness. In this study, the effect of aging temperature on its microstructure and mechanical properties was systematically studied based on austenite reversion and nano-precipitation. It shows that a desirable combination of high strength (834 MPa, 25 degrees C) and excellent cryogenic impact toughness (164 J, -196 degrees C) can be obtained by aging treatment at 500 degrees C. Multi-scale characterizations were conducted to reveal the microstructure characteristics of the steel. It was found that obvious film-like reversed austenite nucleate and grow at the high angle grain boundaries of martensite matrix in the steel aged at 500 degrees C, whereas the higher aging temperature resulted in a larger content of blocky reversed austenite in martensite blocks. Austenite reversion mechanism was proposed based on the double-spherical-cap model and diffusion kinetics of Ni element. Besides, it was found that the precipitation sites of Ti-rich particles are not only distributed in matrix but also located at the dislocations, and they were identified as the clusters of Ni3Ti precipitates. Finally, the origin of the above cryogenic toughness includes the transformation-induced plasticity (TRIP) effect from the soft film-like austenite, higher density of high angle grain boundaries of martensite and fine nanoscale precipitates. Moreover, the precipitation strengthening from the clusters of Ni3Ti precipitates contributes to the high strength of the steel aged at 500 degrees C. (c) 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Cryogenic maraging steel Reversed austenite Precipitation Strength Impact toughness
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Key Program of the Chinese Academy of Sciences ; Program of CAS Interdisciplinary Innovation Team
DOI	10.1016/j.jmrt.2020.12.096
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2018YFA0702901] ; National Natural Science Foundation of China[U1508215] ; National Natural Science Foundation of China[51774265] ; National Science and Technology Major Project of China[2019ZX06004010] ; Key Program of the Chinese Academy of Sciences[ZDRW-CN-2017-1] ; Program of CAS Interdisciplinary Innovation Team
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000640318400009
出版者	ELSEVIER
引用统计	被引频次：37[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/321006/162239
专题	中国科学院金属研究所
通讯作者	Xu, Bin
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Yanshan Univ, Sch Mech Engn, Qinhuangdao 066004, Hebei, Peoples R China 6.China Aerodynam Res & Dev Ctr, Mianyang 621000, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Honglin,Ji, Xiang,Ma, Dongping,et al. Effect of aging temperature on the austenite reversion and mechanical properties of a Fe-10Cr-10Ni cryogenic maraging steel[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,11:98-111.
APA	Zhang, Honglin.,Ji, Xiang.,Ma, Dongping.,Tong, Min.,Wang, Taijiang.,...&Li, Dianzhong.(2021).Effect of aging temperature on the austenite reversion and mechanical properties of a Fe-10Cr-10Ni cryogenic maraging steel.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,11,98-111.
MLA	Zhang, Honglin,et al."Effect of aging temperature on the austenite reversion and mechanical properties of a Fe-10Cr-10Ni cryogenic maraging steel".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 11(2021):98-111.