書誌事項
- タイトル別名
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- Evaluation of Durability of SCM435 Steel for High-pressure Hydrogen System by Slow Strain Rate Technique with Cathodically Hydrogen Charged Specimen
- SCM435コウ インキョク スイソ チャージ シケンヘン ノ SSRT ニ ヨル タイスイ スジョウ ヒョウカ
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説明
As an alternative method to evaluation of slow strain rate technique (SSRT) under high-pressure hydrogen gas, SSRT tests were performed with a cathodically charged specimen. Cathodic charging was performed in 3% NaCl aqueous solution with pH=6 and at a current density of 50 to 600 A⁄m2. Cr-Mo low alloy steel with a tensile strength of 1000 MPa grade was selected as a test material. Relative reduction of area (RRA) values obtained by tests with continuous charge at a cathode current density of400 A⁄m2 were equivalent to those performed in hydrogen gas at pressure of 100 MPa. Fracture surface observations were also performed using scanning electron microscopy (SEM) . The quasi-cleavage fracture surface of hydrogen embrittlement (QCHE) was observed near the surface of specimen that were subjected to continuously hydrogen charged tests. It was necessary to charging hydrogen during a certain level of plastic deformation to form the QCHE. The results show that to simulate the high-pressure hydrogen gas test, it was necessary to perform the hydrogen-charged until rupture.
収録刊行物
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- 圧力技術
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圧力技術 56 (3), 128-135, 2018-05-25
一般社団法人 日本高圧力技術協会
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詳細情報 詳細情報について
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- CRID
- 1390845712969845888
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- NII論文ID
- 130007412382
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- NII書誌ID
- AN00011762
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- ISSN
- 13479598
- 03870154
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- NDL書誌ID
- 029076891
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可