Simultaneously enhancing strength and toughness of medium-carbon martensitic steel via nano precipitates and fine-grained structure

doi:10.1016/j.msea.2022.143030

IMR OpenIR

	Simultaneously enhancing strength and toughness of medium-carbon martensitic steel via nano precipitates and fine-grained structure
	Liu, Hanghang 1,2; Fu, Paixian 1,2; Liu, Hongwei 1,2; Sun, Chen 1,2; Du, Ningyu 1,2,3; Li, Dianzhong 1,2
通讯作者	Fu, Paixian(pxfu@imr.ac.cn) ; Sun, Chen(csun15s@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2022-05-11
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	842 页码:8
摘要	A medium-carbon martensitic mold steel with high strength and toughness is obtained based on the synergistic effect of nano precipitates and fine-grained (FG) structure. Treatment increases the length per unit area of the effective grain boundary by 37.9%. Compared with the untreated samples, the excellent properties of the steel include increases of 39.2% in impact energy and more than 110 Mpa in ultimate yield strength. The FG structure is produced by the interaction between the MC nano precipitates formed by V alloying and the subgrain structure formed by thermomechanical processing (TMP). Additionally, the anisotropy of the microstructure is eliminated through the innovative introduction of austenitization, resulting in the refinement and homogenization of the grain structure. MC nano precipitates not only prevent the growth of subgrain structure but also enhance the thermal stability of FG structure through a pinning mechanism during austenitization.
关键词	Martensitic steels Precipitation Grain refining Mechanical properties Synergistic strengthening
资助者	China Postdoctoral Science Foundation ; IMR Innovation Fund ; Young Talent Project by Shenyang National Laboratory for Materials Science ; Doctoral Research Startup Fund Guidance Program Project of Liaoning Province ; Strengthen Industrial Development at the Grassroots Level
DOI	10.1016/j.msea.2022.143030
收录类别	SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[2019M661153] ; IMR Innovation Fund[2022-PY09] ; Young Talent Project by Shenyang National Laboratory for Materials Science[2020000358] ; Doctoral Research Startup Fund Guidance Program Project of Liaoning Province[2020-BS-004] ; Strengthen Industrial Development at the Grassroots Level[TC190A4DA/35]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000912289300001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：15[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/321006/175255
专题	中国科学院金属研究所
通讯作者	Fu, Paixian; Sun, Chen; Li, Dianzhong
作者单位	1.Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hanghang,Fu, Paixian,Liu, Hongwei,et al. Simultaneously enhancing strength and toughness of medium-carbon martensitic steel via nano precipitates and fine-grained structure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,842:8.
APA	Liu, Hanghang,Fu, Paixian,Liu, Hongwei,Sun, Chen,Du, Ningyu,&Li, Dianzhong.(2022).Simultaneously enhancing strength and toughness of medium-carbon martensitic steel via nano precipitates and fine-grained structure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,842,8.
MLA	Liu, Hanghang,et al."Simultaneously enhancing strength and toughness of medium-carbon martensitic steel via nano precipitates and fine-grained structure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 842(2022):8.