Material performance of age-hardened beryllium copper alloy, CDA-C17200, in a high-pressure, gaseous hydrogen environment

被引：24

作者：

Ogawa, Yuhei ^{[1
,2
]}

Yamabe, Junichiro ^{[3
,5
,6
]}

Matsunaga, Hisao ^{[4
,5
,6
]}

Matsuoka, Saburo ^{[5
]}

机构：

[1] Kyushu Univ, Grad Sch Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[2] Japan Soc Promot Sci, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[3] Kyushu Univ, Int Res Ctr Hydrogen Energy, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[4] Kyushu Univ, Dept Mech Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[5] Kyushu Univ, Res Ctr Hydrogen Ind Use & Storage HYDROGENIUS, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[6] Kyushu Univ, I2CNER, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 26期

关键词：

Copper-based alloy; Precipitation hardening; Hydrogen embrittlement; Tensile; Fatigue; Fracture toughness; FATIGUE-CRACK GROWTH; WT-PERCENT CO; MECHANICAL-PROPERTIES; LOCALIZED PLASTICITY; EMBRITTLEMENT; BEHAVIOR; TRANSPORT; STEELS; CU; PRECIPITATION;

D O I：

10.1016/j.ijhydene.2017.04.270

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In order to develop safer and more energy-efficient, hydrogen pre-cooling systems for use in hydrogen refueling stations, it is necessary to identify a high-strength metallic material with greater thermal conductivity and lower susceptibility to hydrogen embrittlement, as compared with ordinary, stable austenitic stainless steels. To accomplish this task, the hydrogen compatibility of a precipitation-hardened, high-strength, copper-based alloy was investigated by slow-strain-rate tensile (SSRT), fatigue-life, fatigue-crack-growth (FCG) and fracture toughness tests in 115-MPa hydrogen gas at room temperature. The hydrogen solubility and diffusivity of the alloy were also determined. The hydrogen solubility of the alloy was two or three orders of magnitude lower than that of austenitic stainless steels. The alloy also demonstrated absolutely no hydrogen-induced degradation of its strength properties, a factor which could contribute to the reduction of costs related to the construction and maintenance of hydrogen refueling stations, owing to the downsizing and improved cooling performance of the pre-cooling systems. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：16887 / 16900

页数：14