Evaluation of hydrogen embrittlement properties of stainless steels by SSRT and external pressure fatigue tests

OMURA Tomohiko, MIYAHARA Mitsuo, SEMBA Hiroyuki, IGARASHI Masaaki, HIRATA Hiroyuki

doi:10.11181/hpi.46.205

Bibliographic Information

Other Title

高圧水素ガス環境におけるSSRTおよび外圧疲労試験によるステンレス鋼の水素脆性評価
コウアツスイソガスカンキョウニオケル SSRT オヨビガイアツヒロウシケンニヨルステンレスコウノスイソゼイセイヒョウカ

Search this article

Description

Hydrogen Environment Embrittlement (HEE) susceptibility in high pressure gaseous hydrogen was investigated on austenitic stainless steels and A6061-T6 aluminum alloy. Tensile properties of these materials were evaluated by Slow Strain Rate Test (SSRT) in gaseous hydrogen pressurized up to 90MPa in the temperature range from-40 to 85°C. HEE susceptibilities of austenitic stainless steels strongly depended upon the chemical compositions and testing temperatures. A6061-T6 aluminum alloy showed no degradation by hydrogen. Fatigue properties in high pressure gaseous hydrogen were evaluated by the external cyclic pressurization test using tubular specimens. The tubular specimen was filled with high pressure hydrogen gas. The outside of the specimen was cyclically pressurized with water. Type 304 showed a decrease in the fatigue life in hydrogen gas, while as for type 316L and A6061-T6 the difference of the fatigue life between hydrogen and argon environments was small. HEE susceptibilities of investigated materials were discussed based on the stability of an austenitic structure.

Journal

Journal of High Pressure Institute of Japan

Journal of High Pressure Institute of Japan 46 (4), 205-213, 2008

HIGH PRESSURE INSTITUTE OF JAPN(HPI)

Keywords

Details 詳細情報について

CRID: 1390282679592515584

NII Article ID: 130004446810; 10024273872

NII Book ID: AN00011762

DOI: 10.11181/hpi.46.205

ISSN: 13479598; 03870154

NDL BIB ID: 9613970

Web Site: http://id.ndl.go.jp/bib/9613970; https://ndlsearch.ndl.go.jp/books/R000000004-I9613970

Text Lang: ja

Data Source

JaLC
NDL
CiNii Articles

Abstract License Flag: Disallowed

Export