The martensitic transition pathway in steel | |
Liu, Tianwei2,3; Liang, Lunwei2,3; Raabe, Dierk1; Dai, Lanhong2,3 | |
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. |
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