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Evolution of Toughening Mechanisms in PH13-8Mo Stainless Steel during Aging Treatment

文献类型：期刊论文

作者Zhang, Honglin1,2; Mi, Peng5; Hao, Luhan3; Zhou, Haichong2,3; Yan, Wei4; Zhao, Kuan5; Xu, Bin1,2; Sun, Mingyue2
刊名MATERIALS
出版日期2023-05-10
卷号16期号:10页码:15
关键词PH13-8Mo stainless steel aging treatment heterogeneous microstructures toughening mechanisms
DOI10.3390/ma16103630
通讯作者Sun, Mingyue(mysun@imr.ac.cn)
英文摘要PH13-8Mo stainless steel has been widely used in aerospace, petroleum and marine construction, obtaining continuous investigation attention in recent years. Based on the response of a hierarchical martensite matrix and possible reversed austenite, a systematic investigation of the evolution of the toughening mechanisms in PH13-8Mo stainless steel as a function of aging temperature was carried out. It showed there was a desirable combination of high yield strength (similar to 1.3 GPa) and V-notched impact toughness (similar to 220 J) after aging between 540 and 550 degrees C. With the increase of aging temperature, the martensite matrix was recovered in terms of the refined sub-grains and higher ratio of high-angle grain boundaries (HAGBs). It should be noted there was a reversion of martensite to form austenite films subjected to aging above 540 degrees C; meanwhile, the NiAl precipitates maintained a well-coherent orientation with the matrix. Based on the post mortem analysis, there were three stages of the changing main toughening mechanisms: Stage I: low-temperature aging at around 510 degrees C, where the HAGBs contributed to the toughness by retarding the advance of cracks; Stage II: intermediate-temperature aging at around 540 degrees C, where the recovered laths embedded by soft austenite facilitated the improvement of toughness by synergistically increasing the advance path and blunting the crack tips; and Stage III: without the coarsening of NiAl precipitates around 560 degrees C, more inter-lath reversed austenite led to the optimum toughness, relying on "soft barrier" and transformation-induced plasticity (TRIP) effects.
资助项目National Key Research and Development Program[2018YFA0702900] ; National Natural Science Foundation of China[52173305] ; National Natural Science Foundation of China[52101061] ; National Natural Science Foundation of China[52233017] ; National Natural Science Foundation of China[52203384] ; National Science and Technology Major Project of China[2019ZX06004010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; China Postdoctoral Science Foundation[2020M681004] ; China Postdoctoral Science Foundation[2021M703276] ; Innovative Research Groups Project of the Natural Science Foundation of Hebei Province[E2021203011] ; Natural Science Foundation of Hebei Province[E2021203197] ; IMR Innovation Foundation[2022-PY12] ; LingChuang Research Project of China National Nuclear Corporation ; CNNC Science Fund for Talented Young Scholars and Youth Innovation Promotion Association, CAS
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种英语
WOS记录号WOS:000998004700001
出版者MDPI
资助机构National Key Research and Development Program ; National Natural Science Foundation of China ; National Science and Technology Major Project of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; Innovative Research Groups Project of the Natural Science Foundation of Hebei Province ; Natural Science Foundation of Hebei Province ; IMR Innovation Foundation ; LingChuang Research Project of China National Nuclear Corporation ; CNNC Science Fund for Talented Young Scholars and Youth Innovation Promotion Association, CAS
源URL[http://ir.imr.ac.cn/handle/321006/177921]  
专题金属研究所_中国科学院金属研究所
通讯作者Sun, Mingyue
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
3.Yanshan Univ, Sch Mech Engn, Qinhuangdao 066004, Peoples R China
4.Inst Met Sci & Technol, Shi Changxu Innovat Ctr Adv Mat, Shenyang, Peoples R China
5.China Aerodynam Res & Dev Ctr, Mianyang 621000, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Honglin,Mi, Peng,Hao, Luhan,et al. Evolution of Toughening Mechanisms in PH13-8Mo Stainless Steel during Aging Treatment[J]. MATERIALS,2023,16(10):15.
APA Zhang, Honglin.,Mi, Peng.,Hao, Luhan.,Zhou, Haichong.,Yan, Wei.,...&Sun, Mingyue.(2023).Evolution of Toughening Mechanisms in PH13-8Mo Stainless Steel during Aging Treatment.MATERIALS,16(10),15.
MLA Zhang, Honglin,et al."Evolution of Toughening Mechanisms in PH13-8Mo Stainless Steel during Aging Treatment".MATERIALS 16.10(2023):15.

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来源：金属研究所

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