IMECH-IR  > 非线性力学国家重点实验室
TEM and electron diffraction analysis of omega-Fe to cementite transformation in quenched and tempered high carbon steels
Liu TW(刘天威); Li T(李彤)
Corresponding AuthorLiu, Tianwei(liutianwei@inm.imech.ac.cn)
Source PublicationAIP ADVANCES
2019-04-01
Volume9Issue:4Pages:8
ISSN2158-3226
AbstractQuenching and tempering are mostly employed to tune the mechanical properties of the high-carbon steels. In the present study, transmission electron microscopy (TEM) and selected area electron diffraction (SAED) are used to examine the microstructural evolution in quenched and tempered high carbon steels. In quenched specimens, the omega-Fe(C) phase is a common substructure in twinned martensite and its diffraction spots are located at 1/3 and 2/3 (2 (1) over bar1)(alpha-Fe) positions along the [011](alpha-Fe) zone axis (ZA). When specimens are in-situ heated in TEM, few additional diffraction spots are observed at 1/6, 3/6 and 5/6 (211)(alpha-Fe) positions along the [011](alpha-Fe) ZA. Moreover, martensite decomposes into a lamellar structure and omega-Fe(C) phase transforms into theta-Fe3C cementite during tempering. The TEM and electron diffraction analysis reveals that diffraction spots of theta-Fe3C cementite phase are located at 1/6, 2/6, 3/6, 4/6 and 5/6 (22 (2) over bar)(alpha-Fe) and (2 (1) over bar1)(alpha-Fe) along [112](alpha-Fe) and [011](alpha-Fe) ZAs. Furthermore, the orientation relationships between theta-Fe3C cementite and alpha-Fe are indexed as: [013](theta)//[112](alpha-Fe), [001](theta)//[011](alpha-Fe), [(1) over bar 13](theta)//[111](alpha-Fe) and [(1) over bar 02](theta)//[131]alpha-Fe, which are related to the transformation of omega-Fe to theta-Fe3C cementite. The current study provides a baseline to understand the microstructural evolution in high carbon steels during heat treatment processes. (c) 2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
DOI10.1063/1.5091847
Indexed BySCI ; EI
Language英语
WOS IDWOS:000466614700087
WOS KeywordPROPERTY RELATIONSHIPS ; LATH MARTENSITE ; CRYSTALLOGRAPHY ; CARBIDES ; PHASE ; SIZE
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding ProjectKey Research Program of Frontier Sciences[QYZDJSSW-JSC011] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040302]
Funding OrganizationKey Research Program of Frontier Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
ClassificationQ3
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79323
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Liu TW,Li T. TEM and electron diffraction analysis of omega-Fe to cementite transformation in quenched and tempered high carbon steels[J]. AIP ADVANCES,2019,9(4):8.
APA 刘天威,&李彤.(2019).TEM and electron diffraction analysis of omega-Fe to cementite transformation in quenched and tempered high carbon steels.AIP ADVANCES,9(4),8.
MLA 刘天威,et al."TEM and electron diffraction analysis of omega-Fe to cementite transformation in quenched and tempered high carbon steels".AIP ADVANCES 9.4(2019):8.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[刘天威]'s Articles
[李彤]'s Articles
Baidu academic
Similar articles in Baidu academic
[刘天威]'s Articles
[李彤]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[刘天威]'s Articles
[李彤]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.