An ultra-high strength bainitic aging steel

被引：2
|
作者：
Zhou, Xinlei [1 ,2 ]
Zeng, Tianyi [3 ]
Shi, Xianbo [2 ]
Zhao, Mingchun [4 ]
Wang, Wei [2 ]
Li, Yanfen [2 ]
Yan, Wei [2 ]
机构：
[1] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
[3] Hunan Univ Technol, Sch Packaging & Mat Engn, Zhuzhou 412007, Peoples R China
[4] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
SCRIPTA MATERIALIA | 2024年 / 245卷
基金：
中国国家自然科学基金;
关键词：
Bainitic aging steel; Precipitates; Austenite; Mechanical properties; MECHANICAL-PROPERTIES; AUSTENITE; MARTENSITE; TOUGHNESS;
D O I：
10.1016/j.scriptamat.2024.116061
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Bainite has been recognized to have both high strength and good toughness. Therefore, the isothermal quenching treatment at 220 degrees C was applied to conventional maraging steel with ultra-low carbon content. It was found that the bainitic microstructure was successfully achieved by isothermal quenching treatment for this maraging steel. After aging at 500 degrees C for 3 h, the tensile strength of such bainitic aging steel reached 2.2 GPa, the room temperature Charpy V-notch impact energy 15 J, and fatigue strength 775 MPa.
引用
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页数：5
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