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

页码：29 / 34

页数：6

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