The martensitic transition pathway in steel

doi:10.1016/j.jmst.2022.06.023

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	The martensitic transition pathway in steel
	Liu, Tianwei 2,3; Liang, Lunwei 2,3; Raabe, Dierk 1; Dai, Lanhong 2,3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2023-01-20
卷号	134 页码:244-253
关键词	BCT twin Martensitic transformation Steels TEM Phase transformation
ISSN号	1005-0302
DOI	10.1016/j.jmst.2022.06.023
通讯作者	Raabe, Dierk(d.raabe@mpie.de) ; Dai, Lanhong(lhdai@lnm.imech.ac.cn)
英文摘要	The martensitic transformation (MT) lays the foundation for microstructure and performance tailoring of many engineering materials, especially steels, which are with > 1.8 billion tons produced per year the most important material class. The atomic-scale migration path is a long-term challenge for MT during quenching in high-carbon (nitrogen) steels. Here, we provide direct evidence of (1(1) over bar 2) body-centred tetragonal (BCT) twinned martensite in carbon steels by transmission electron microscopy (TEM) investigation, and the increase in tetragonality with the C content matches X-ray diffraction (XRD) results. The specific {1(1) over bar 2}(BCT) twin planes which are related to the elongated c axis provide essential structural details to revisit the migration path of the atoms in MT. Therefore, the face-centred cubic (FCC) to BCT twin to body-centred cubic (BCC) twin transition pathway and its underlying mechanisms are revealed through direct experimental observation and atomistic simulations. Our findings shed new light on the nature of the martensitic transition, thus providing new opportunities for the nanostructural control of metals and alloys. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	NSFC[51931005] ; NSFC[51901235] ; NSFC[11790292] ; NSFC Basic Science Center Program for Multi-scale Problems in Nonlinear Mechanics[11988102] ; Key Research Program of Frontier Sciences[QYZDJSSW-JSC011] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040302] ; CityU grant[9360161]
WOS关键词	ELECTRON-DIFFRACTION ; LATH MARTENSITE ; TRANSFORMATION ; MECHANISM ; IRON ; LATTICE ; NUCLEATION ; STRATEGIES ; AUSTENITE ; GAMMA
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000841304700004
资助机构	NSFC ; NSFC Basic Science Center Program for Multi-scale Problems in Nonlinear Mechanics ; Key Research Program of Frontier Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CityU grant
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89892]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Raabe, Dierk; Dai, Lanhong
作者单位	1.Max Planck Inst Eisenforsch GmbH, Dusseldorf, Germany 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Tianwei,Liang, Lunwei,Raabe, Dierk,et al. The martensitic transition pathway in steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,134:244-253.
APA	Liu, Tianwei,Liang, Lunwei,Raabe, Dierk,&Dai, Lanhong.(2023).The martensitic transition pathway in steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,134,244-253.
MLA	Liu, Tianwei,et al."The martensitic transition pathway in steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 134(2023):244-253.