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

页码：4439 / 4441

页数：3

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