Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
Research Paper
Slow Strain Rate Testing for the Various Types of Commercially Pure Titanium in Hydrogen Gas at High Temperature and High Pressure
Kenichi KoideToshirou AnrakuAkihiro IwaseHiroyuki Inoue
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JOURNALS FREE ACCESS

2016 Volume 65 Issue 10 Pages 413-419

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Abstract

The slow strain rate testing (SSRT) on JIS Class 1, Class 2, Class 3, and Class 4 of commercially pure titanium (CP-Ti) was carried out in a hydrogen gas under high temperatures to 300℃ and high pressures to 75MPa. The degree of embrittlement in the hydrogen gas was evaluated from the tensile strength, the elongation and the reduction of area with respect to those measured in air at the same temperatures but under atmospheric pressure. It was revealed that the tensile strengths of the CP-Tis did not reduce regardless of their classes even in the hydrogen gas at a high pressure of 75MPa. The elongation and the reduction area at 100℃ rather increased in the high-pressure hydrogen gas than those in air.

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© 2016 Japan Society of Corrosion Engineering
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