Hydrogen Enhances Shape Memory Effect of a Ferrous Face-Centered Cubic Alloy

被引：6
|
作者：
Koyama, Motomichi [1 ,2 ]
Hao, Chunxi [3 ,4 ]
Akiyama, Eiji [3 ]
Tsuzaki, Kaneaki [5 ,6 ,7 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Katahira 2-1-1, Sendai, Miyagi 9808577, Japan
[2] Kyoto Univ, Elements Strategy Initiat Struct Mat ESISM, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan
[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi, Japan
[4] Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Peoples R China
[5] Kyoto Univ, Elements Strategy Initiat Struct Mat ESISM, Kyoto, Japan
[6] Kyushu Univ, Res Ctr Hydrogen Ind Use & Storage HYDROGENIUS, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[7] Natl Inst Mat Sci, Res Ctr Struct Mat, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2020年 / 51卷 / 09期
基金：
日本科学技术振兴机构;
关键词：
EPSILON TRANSFORMATION; INDUCED GAMMA; EMBRITTLEMENT; MARTENSITE; DEFORMATION; STRESS;
D O I：
10.1007/s11661-020-05886-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper marks the first report on the fact that interstitial hydrogen improves the shape recovery property of an Fe-based face-centered cubic alloy, regardless of pre-strain level. The maximum shape recovery strain when using hydrogen was increased from 2.8 to 3.4 pct at an approximately 7 pct pre-strain. The enhancement of the shape memory effect by hydrogen stems from (1) increasing deformation-induced martensite fraction, (2) thinning of martensite plates, and (3) increasing the number of martensite plates.
引用
收藏
页码：4439 / 4441
页数：3
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