Single parameter controlling the substructure and the hardening by martensitic transformation

doi:10.1016/j.jmst.2024.08.052

IMR OpenIR

	Single parameter controlling the substructure and the hardening by martensitic transformation
	Lu, Ning 1; Li, Yong 1; Sun, Haidong 1,2; Liu, Yang 3; Wang, Peng 4; Li, Changji 5; Zhu, Pinwen 6; Yu, Dongli 4; Zhang, Hongwang 1
通讯作者	Zhang, Hongwang(hwzhang@ysu.edu.cn)
	2025-06-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	220 页码:164-179
摘要	In the present study, a single parameter governing the substructure and the strengthening for martensitic transformation was tentatively explored by detailing the microstructure and the strengthening of a Fe15 wt.%Cr binary alloy subjected to thermal cycle under high pressure (cooled at 10 degrees C s-1 from 1050 degrees C under hydrostatic pressure of 1.0-4.0 GPa). Experimental results show that high pressure makes martensitic transformation occur in a Fe-15Cr alloy that traditionally has no high-temperature austenite under atmospheric pressure. The phase transformation begins with the pairing of twinned variants, and the strengthening is solely dependent upon the density of dislocations and variants. The austenite strength at the transformation temperature governs the substructure and the induced strengthening by influencing: (1) The critical size below which twinned variants are solely allowed; (2) the orientation spreading of the pioneer twinned variants toward Bain pairs; (3) the variant thickness and in turn the strengthening extent. The present study sheds light on tuning the substructure and hardening during martensitic transformation via the austenite strength, showing potential scientific and technological importance. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Austenite strength Substructure and strengthening Martensitic transformation Twinned variants High pressure
资助者	Hundred Outstand-ing Creative Talents Projects at Hebei University, China ; Natu-ral Science Foundation-Steel and Iron Foundation of Hebei Province
DOI	10.1016/j.jmst.2024.08.052
收录类别	SCI
语种	英语
资助项目	Hundred Outstand-ing Creative Talents Projects at Hebei University, China ; Natu-ral Science Foundation-Steel and Iron Foundation of Hebei Province[E2021203051]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001398706200001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180253
专题	中国科学院金属研究所
通讯作者	Zhang, Hongwang
作者单位	1.Yanshan Univ, Coll Mech Engn, Natl Engn Res Ctr Equipment & Technol Cold Strip R, Qinhuangdao 066004, Peoples R China 2.Shandong Lab Adv Mat & Green Mfg Yantai, Yantai 264006, Peoples R China 3.Hebei Normal Univ Sci & Technol, Coll Mech & Elect Engn, Qinhuangdao 066004, Peoples R China 4.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 6.Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
推荐引用方式 GB/T 7714	Lu, Ning,Li, Yong,Sun, Haidong,et al. Single parameter controlling the substructure and the hardening by martensitic transformation[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,220:164-179.
APA	Lu, Ning.,Li, Yong.,Sun, Haidong.,Liu, Yang.,Wang, Peng.,...&Zhang, Hongwang.(2025).Single parameter controlling the substructure and the hardening by martensitic transformation.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,220,164-179.
MLA	Lu, Ning,et al."Single parameter controlling the substructure and the hardening by martensitic transformation".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 220(2025):164-179.