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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

文献类型：期刊论文

作者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
刊名METALS
出版日期2021
卷号11期号:1页码:16
关键词2 25Cr1Mo steels magnesium phosphorus auger electron instrument grain boundary segregation
DOI10.3390/met11010010
通讯作者Li, Xiaobing(xbli@imr.ac.cn) ; Ma, Yingche(ycma@imr.ac.cn)
英文摘要In 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.
资助项目National Natural Science Foundation of China[51801210]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000610501600001
出版者MDPI
资助机构National Natural Science Foundation of China
源URL[http://ir.imr.ac.cn/handle/321006/159071]  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Xiaobing; Ma, Yingche
作者单位1.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
推荐引用方式
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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来源：金属研究所

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