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

doi:10.3390/ma16103630

IMR OpenIR

	Evolution of Toughening Mechanisms in PH13-8Mo Stainless Steel during Aging Treatment
	Zhang, Honglin 1,2; Mi, Peng 3; Hao, Luhan 4; Zhou, Haichong 1,4; Yan, Wei 5; Zhao, Kuan 3; Xu, Bin 1,2; Sun, Mingyue 1
通讯作者	Sun, Mingyue(mysun@imr.ac.cn)
	2023-05-10
发表期刊	MATERIALS
卷号	16 期号:10 页码:15
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.
关键词	PH13-8Mo stainless steel aging treatment heterogeneous microstructures toughening mechanisms
资助者	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
DOI	10.3390/ma16103630
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000998004700001
出版者	MDPI
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177922
专题	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, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.China Aerodynam Res & Dev Ctr, Mianyang 621000, Peoples R China 4.Yanshan Univ, Sch Mech Engn, Qinhuangdao 066004, Peoples R China 5.Inst Met Sci & Technol, Shi Changxu Innovat Ctr Adv Mat, Shenyang, 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.