Hydrogen diffusivity and tensile-ductility loss of solution-treated austenitic stainless steels with external and internal hydrogen

被引：106

作者：

Yamabe, Junichiro ^{[1
,2
,3
]}

Takakuwa, Osamu ^{[2
]}

Matsunaga, Hisao ^{[2
,3
,4
]}

Itoga, Hisatake ^{[2
,5
]}

Matsuoka, Saburo ^{[2
]}

机构：

[1] Kyushu Univ, Int Res Ctr Hydrogen Energy, Nishi Ku, 744 Moto Oka, Fukuoka, Fukuoka 8190395, Japan

[2] Kyushu Univ, Res Ctr Hydrogen Ind Use & Storage HYDROGENIUS, Nishi Ku, 744 Moto Oka, Fukuoka, Fukuoka 8190395, Japan

[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, 744 Moto Oka, Fukuoka, Fukuoka 8190395, Japan

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

[5] Hydrogen Energy Test & Res Ctr HyTReC, 915-1 Tomi, Itoshima, Fukuoka 8191133, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 18期

关键词：

Hydrogen embrittlement; Slow-strain-rate tensile test; Austenitic stainless steel; Nickel equivalent; Additive element; ENVIRONMENT EMBRITTLEMENT; FRACTURE; COMPATIBILITY; TRANSPORT; BEHAVIOR;

D O I：

10.1016/j.ijhydene.2017.04.055

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：

The effects of external and internal hydrogen on the slow-strain-rate tensile (SSRT) properties at room temperature were studied for ten types of solution-treated austenitic stainless steels containing a small amount of additive elements. The hydrogen diffusivity and solubility of the steels were measured with high-pressure hydrogen gas. The remarkable tensile-ductility loss observed in the SSRT tests was attributed to hydrogen induced successive crack growth (HISCG) and was successfully quantified according to the nickel-equivalent content (Ni-eq), which represents the stability of the austenitic phase. The relative reduction in area (RRA) of the steels with a larger Ni-eq was influenced by the hydrogen distribution, whereas that of the steels with a smaller Ni-eq was not. This unique trend was interpreted with regard to the hydrogen distribution and fracture morphology (HISCG or microvoid coalescence). (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：13289 / 13299

页数：11

共 37 条

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