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Effect of Trace Mg on Impact Toughness of 2.25Cr1Mo Steel Doped with 0.056% P at Medium Temperature Aging Process
Dong, Xin1,2; Li, Xiaobing2,3,4; Xing, Weiwei2,3,4; Ding, Leilei2,3,4; Ma, Yingche2,3,4; Liu, Kui2,3,4; Zhang, Nannan1
Corresponding AuthorLi, Xiaobing(xbli@imr.ac.cn) ; Ma, Yingche(ycma@imr.ac.cn)
2021
Source PublicationMETALS
Volume11Issue:1Pages:16
AbstractIn order to investigate the effect of Mg addition on the embrittlement of Cr-Mo steels, the 2.25Cr1Mo steel plates containing Mg, P contents were refined with vacuum induction furnace and rolled with double-stick reversible rolling mill. The impact toughness evolution and microstructural characteristics of these steels after aging at 580 degrees C for up to 5000 h were systematically investigated. The grain boundary segregation behaviors of P, S, and Mg before and after aging were analyzed with auger electron spectroscopy (AES), and the microstructure characteristics of the steels were detected with optical electron microscope (OM) and transmission electron microscope (TEM). The research results show Mg addition can improve the impact toughness of the 2.25Cr1Mo steel to a certain extent even with 0.056 wt.% P doping. It was clarified that Mg can segregate to grain boundary during the aging process, and its strong segregation tendency can reduce the grain boundary segregation of P to some degree. The effects of Mg on the impact toughness after subjecting to 580 degrees C ageing, including element segregation behaviors at grain boundary, ferrite formation, prior austenite grain characteristics, and carbides at grain boundary were also identified and discussed.
Keyword2 25Cr1Mo steels magnesium phosphorus auger electron instrument grain boundary segregation
Funding OrganizationNational Natural Science Foundation of China
DOI10.3390/met11010010
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51801210]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000610501600001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159072
Collection中国科学院金属研究所
Corresponding AuthorLi, Xiaobing; Ma, Yingche
Affiliation1.Shenyang Univ Technol, Sch Mat & Engn, Shenyang 110870, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Inst Met Res NMSA, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110014, Peoples R China
4.Inst Met Sci & Technol, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Dong, Xin,Li, Xiaobing,Xing, Weiwei,et al. Effect of Trace Mg on Impact Toughness of 2.25Cr1Mo Steel Doped with 0.056% P at Medium Temperature Aging Process[J]. METALS,2021,11(1):16.
APA Dong, Xin.,Li, Xiaobing.,Xing, Weiwei.,Ding, Leilei.,Ma, Yingche.,...&Zhang, Nannan.(2021).Effect of Trace Mg on Impact Toughness of 2.25Cr1Mo Steel Doped with 0.056% P at Medium Temperature Aging Process.METALS,11(1),16.
MLA Dong, Xin,et al."Effect of Trace Mg on Impact Toughness of 2.25Cr1Mo Steel Doped with 0.056% P at Medium Temperature Aging Process".METALS 11.1(2021):16.
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