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Development of Evaluation Technique for Hydrogen Embrittlement Behavior of Metallic Materials Using in-situ SP Testing under Pressurized Hydrogen Gas Conditions

고압수소가스하 in-situ SP시험법을 사용한 금속재료의 수소취화거동 평가기법 개발

  • Received : 2010.12.14
  • Accepted : 2011.08.30
  • Published : 2011.11.01

Abstract

Recently, alternative and novel energy resources have been developed for use in the future because of the current environmental problems and exhaustion of fossil energy resources. Hydrogen energy has many merits, such as its environmental friendliness, easy storage, and easy production, but it also has disadvantages, in that it is highly combustible and explosive. In this study, a test procedure using a simple SP test under highly pressurized hydrogen gas conditions was established. In order to evaluate its applicability, SP tests were carried out using a stainless steel (SUS316L) sample under atmospheric, pressurized helium, and pressurized hydrogen gas conditions. The results under the pressurized hydrogen gas condition showed fissuring and produced a reduction of the elongation in the plastic instability region due to hydrogen embrittlement, showing the effectiveness of the current in-situ SP test.

Keywords

in-situ SP Test;Hydrogen Embrittlement;SUS316L;Pressurized Hydrogen Gas Condition

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Cited by

  1. Influence of Punch Velocity on Gas Hydrogen Embrittlement Behaviors in SA372 Steel vol.37, pp.12, 2013, https://doi.org/10.3795/KSME-A.2013.37.12.1497
  2. A Study on the VHCF Fatigue Behaviors of Hydrogen Attacked Inconel 718 Alloy vol.40, pp.7, 2016, https://doi.org/10.3795/KSME-A.2016.40.7.637
  3. Very High Cycle Fatigue Behaviors and Surface Crack Growth Mechanism of Hydrogen-Embrittled AISI 304 Stainless Steels vol.09, pp.04, 2018, https://doi.org/10.4236/msa.2018.94027

Acknowledgement

Supported by : 한국표준과학연구원