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Investigation of the Microstructure and Mechanical Properties of an Ultrahigh Strength Martensitic Steel Fabricated Using Laser Metal Deposition Additive Manufacturing

文献类型：期刊论文

作者Wang, Min5,6; Zhang, Qican6; Li, Wengang4; Zhang, Zhen5; Chui, Pengfei4; Yu, Zhiting3; Zhang, Kun1,2; Zhang K(张坤)
刊名METALS
出版日期2022-10-01
卷号12期号:10页码:15
关键词additive manufacturing ultrahigh strength steel microstructure mechanical properties heat treatment
DOI10.3390/met12101646
通讯作者Chui, Pengfei(cuanpengfei@snut.edu.cn) ; Zhang, Kun(zhangkun@imech.ac.cn)
英文摘要Ultrahigh strength steels were additively manufactured (AM) using different batches of powders by means of the laser metal deposition (LMD) technique. After quenching and tempering treatments, the microstructures, mechanical properties, and fracture modes of ultrahigh strength steels were investigated by several testing methods. The results demonstrate that martensite and Fe3C cementite were found in the three specimens after quenching and tempering treatments, and the tempered martensite microstructure had a lamellar structure in all specimens. The widths of these martensite lathes were observed to be different for the APHT-1, APHT-2, and APHT-3 samples, and their sizes were 1.92 +/- 0.90 mu m, 1.87 +/- 1.09 mu m, and 1.82 +/- 0.85 mu m, respectively. The martensitic steel exhibited excellent mechanical properties (tensile strength and impact toughness). The yield strength and the ultimate tensile strength of the APHT-3 sample reached 1582 MPa and 1779 MPa, respectively. Moreover, the value of the impact energy for the APHT-1 sample was 46.4 J. In addition, with the changes in the batches of ultrahigh strength steel powders, the fracture mode changed from ductile fracture to brittle fracture under tensile force and impact loads.
WOS关键词OF-THE-ART ; HEAT-TREATMENT ; MARAGING-STEEL ; TEMPERATURE ; PARAMETERS ; BEHAVIOR
资助项目Sichuan Province Science and Technology Major Project[2020ZDZX0014] ; National Natural Science Foundation of China[12272392]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000873019500001
资助机构Sichuan Province Science and Technology Major Project ; National Natural Science Foundation of China
源URL[http://dspace.imech.ac.cn/handle/311007/90675]  
专题力学研究所_国家微重力实验室
通讯作者Chui, Pengfei; Zhang, Kun
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Mech, Key Lab Micrograv Natl Micrograv Lab, Beijing 100190, Peoples R China
3.DFH Satellite Co Ltd, Beijing 100094, Peoples R China
4.Shaanxi Univ Technol, Sch Mat Sci & Engn, Hanzhong 723001, Peoples R China
5.Automat Res Inst China South Ind Grp Corp, Mianyang 621000, Sichuan, Peoples R China
6.Sichuan Univ, Coll Elect & Informat Engn, Chengdu 610065, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Min,Zhang, Qican,Li, Wengang,et al. Investigation of the Microstructure and Mechanical Properties of an Ultrahigh Strength Martensitic Steel Fabricated Using Laser Metal Deposition Additive Manufacturing[J]. METALS,2022,12(10):15.
APA Wang, Min.,Zhang, Qican.,Li, Wengang.,Zhang, Zhen.,Chui, Pengfei.,...&张坤.(2022).Investigation of the Microstructure and Mechanical Properties of an Ultrahigh Strength Martensitic Steel Fabricated Using Laser Metal Deposition Additive Manufacturing.METALS,12(10),15.
MLA Wang, Min,et al."Investigation of the Microstructure and Mechanical Properties of an Ultrahigh Strength Martensitic Steel Fabricated Using Laser Metal Deposition Additive Manufacturing".METALS 12.10(2022):15.

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来源：力学研究所

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