Direct achievement of ultra-high strength and good ductility for high Co-Ni secondary hardening steel by combining spark plasma sintering and deformation

被引：13
作者：
Li, Xianyu [1 ,2 ]
Zhang, Zhaohui [1 ,3 ]
Cheng, Xingwang [1 ,3 ]
Huo, Guojing [1 ]
Song, Qi [1 ]
Xu, Yao [1 ]
机构：
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
[2] Yanan Univ, Sch Phys & Elect Informat, Yanan 716000, Peoples R China
[3] Natl Key Lab Sci & Technol Mat Shock & Impact, Beijing 100081, Peoples R China
来源：
MATERIALS LETTERS | 2021年 / 290卷
基金：
中国国家自然科学基金;
关键词：
Sintering; M54; steel; Deformation; Microstructure; Mechanical properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE; PRECIPITATION;
D O I：
10.1016/j.matlet.2021.129465
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A combination of spark plasma sintering and deformation was developed to fabricate ultra-high strength steel with good ductility in this investigation. Microstructure and mechanical properties of the produced M54 steel were subsequently investigated. Martensite matrix produced by distinctive mechanism of spark plasma sintering led to ultra-high strength of the specimen S and D. Also, the specimen D exhibited good ductility due to gradually closing of micro-pores during SPS compression. Thus, based on the combined procedures, the produced high Co-Ni steel directly achieved ultra-high strength and good ductility without complicated traditional heat treatment process. (c) 2021 Elsevier B.V. All rights reserved.
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页数：4
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