In-Situ Characterization of Deformation and Fracture Behavior of Hot-Rolled Medium Manganese Lightweight Steel

被引：7
|
作者：
Zhao, Zheng-zhi [1 ]
Cao, Rong-hua [1 ]
Liang, Ju-hua [1 ]
Li, Feng [1 ]
Li, Cheng [1 ]
Yang, Shu-feng [2 ]
机构：
[1] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
来源：
JOM | 2018年 / 70卷 / 05期
基金：
中国国家自然科学基金;
关键词：
MEDIUM-MN STEEL; MICROSTRUCTURE; FERRITE; ALUMINUM; AL;
D O I：
10.1007/s11837-018-2790-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The deformation and fracture behavior of hot-rolled medium manganese lightweight (0.32C-3.85Mn-4.18Al-1.53Si) steel was revealed by an in situ tensile test. Deformed delta-ferrite with plenty of cross-parallel deformation bands during in situ tensile tests provides delta-ferrite of good plasticity and ductility, although it is finally featured by the cleavage fracture. The soft and ductile delta-ferrite and high-volume fraction of austenite contribute to the superior mechanical properties of medium manganese lightweight steel heated at 800A degrees C, with a tensile strength of 924 MPa, total elongation of 35.2% and product of the strength and elongation of 32.5 GPa %.
引用
收藏
页码：700 / 705
页数：6
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