Effect of indentation load on vickers hardness of austenitic stainless steel after hydrogen charging

Osamu Takakuwa, Yuta Mano, Hitoshi Soyama

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

3 被引用数 (Scopus)

抄録

In order to reveal the effect of indentation load on Vickers hardness of austenitic stainless steel after hydrogen charging, the Vickers hardness measurements have been conducted with three different indentation load of 0.49, 1.96 and 9.80 N on the surface of type 316L austenitic stainless steel after hydrogen charging. Relationship between plastic deformation behavior during indentation process and hydrogen absorption behavior was revealed. In the Vickers hardness test, Vickers hardness keeps same value though the indentation load varies. Needless to say, the value did not depend on magnitude of the indentation load before hydrogen charging in the present study. However, the Vickers hardness increased along with hydrogen charging time and, interestingly, the increase in the Vickers hardness due to the presence of hydrogen depends on magnitude of the indentation load. In the load of 0.49 N and 9.80 N, the Vickers hardness has a maximum value of 3.04 and 2.04 GPa which is 1.58 and 1.15 times larger than value of 1.73 and 1.70 GPa before hydrogen charging, respectively. The hydrogen-induced hardening behavior observed by the Vickers hardness tests employing different indentation load would be evaluated by the relationship between the plastic deformation depth and the hydrogen absorption depth.

本文言語英語
ホスト出版物のタイトルMaterials and Fabrication
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791846049
DOI
出版ステータス出版済み - 2014
外部発表はい
イベントASME 2014 Pressure Vessels and Piping Conference, PVP 2014 - Anaheim, 米国
継続期間: 7月 20 20147月 24 2014

出版物シリーズ

名前American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
6B
ISSN(印刷版)0277-027X

その他

その他ASME 2014 Pressure Vessels and Piping Conference, PVP 2014
国/地域米国
CityAnaheim
Period7/20/147/24/14

!!!All Science Journal Classification (ASJC) codes

  • 機械工学

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