Development of simple method for creep test in hydrogen at elevated temperature

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Other Title
  • 高温水素中での簡便なクリープ試験法の確立

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<p>Comprehensive understanding of material properties in hydrogen at elevated temperatures is necessary to ensure safety of evolving high-temperature hydrogen energy-material conversion devices. Applicability of hollow specimen method to creep tests in hydrogen at 873 K was studied. The material was JIS SUS304 austenitic stainless steel. Slow strain rate test (SSRT) and creep test were carried out with two different procedures of testing environment preparation. As a result, hydrogen effect didn’t appear when the testing environment was prepared by gas purge and appeared when the testing environment was prepared by vacuuming.</p>

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