Phase Stability Effects on Hydrogen Embrittlement Resistance in Martensite-Reverted Austenite Steels

被引：12
作者：
Cameron, B. C. [1 ]
Koyama, M. [2 ]
Tasan, C. C. [1 ]
机构：
[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
[2] Kyushu Univ, Dept Mech Engn, Nishi Ku, Fukuoka, Fukuoka 8190395, Japan
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2019年 / 50A卷 / 01期
基金：
美国国家科学基金会;
关键词：
INDUCED PLASTICITY STEEL; RETAINED AUSTENITE; TRIP; FRACTURE; MICROSTRUCTURE; TRANSFORMATION; DEFORMATION; DUCTILE; ENERGY;
D O I：
10.1007/s11661-018-4948-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Earlier studies have shown that interlath austenite in martensitic steels can enhance hydrogen embrittlement (HE) resistance. However, the improvements were limited due to microcrack nucleation and growth. A novel microstructural design approach is investigated, based on enhancing austenite stability to reduce crack nucleation and growth. Our findings from mechanical tests, X-ray diffraction, and scanning electron microscopy reveal that this strategy is successful. However, the improvements are limited due to intrinsic microstructural heterogeneity effects.
引用
收藏
页码：29 / 34
页数：6
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