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

文献类型：期刊论文

作者Liu, Hanghang1,3; Fu, Paixian1,3; Liu, Hongwei1,3; Sun, Chen1,3; Du, Ningyu1,2,3; Li, Dianzhong1,3
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2022-05-11
卷号842页码:8
关键词Martensitic steels Precipitation Grain refining Mechanical properties Synergistic strengthening
ISSN号0921-5093
DOI10.1016/j.msea.2022.143030
通讯作者Fu, Paixian(pxfu@imr.ac.cn) ; Sun, Chen(csun15s@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:000912289300001
出版者ELSEVIER SCIENCE SA
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/175254]  
专题金属研究所_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.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, 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.

入库方式： OAI收割

来源：金属研究所

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