A full understanding of hydrogen effect on deformation is important to reveal the mechanism of hydrogen embrittlement. The effects of thermal gaseous hydrogen charging on 304 and 310S austenitic stainless steels have been examined by using nanoindentation. It is first found by using nanoindentation continuous stiffness measurement that hydrogen decreases the elastic modulus and increases the hardness in the initial stage of plastic deformation, while the hydrogen effect becomes weaker and remains nearly constant with further plastic deformation. Hydrogen increases the creep displacement in 310S steel, which indicates that hydrogen facilitates ambient creep. α′ martensite restrains the nanoindentation creep and hydrogen has little effect on the creep induced by α′ martensite.
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ASME 2017 Pressure Vessels and Piping Conference
July 16–20, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5800-4
PROCEEDINGS PAPER
Hydrogen Effect on the Deformation Behavior of Austenitic Stainless Steels Investigated by Nanoindentation
Lin Zhang,
Lin Zhang
Zhejiang University of Technology, Hangzhou, China
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Yuanjian Hong,
Yuanjian Hong
Zhejiang University of Technology, Hangzhou, China
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Jinyang Zheng,
Jinyang Zheng
Zhejiang University of Technology, Hangzhou, China
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Bai An,
Bai An
National Institute of Advanced Industrial Science and Technology, Tsukaba, Japan
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Chengshuang Zhou
Chengshuang Zhou
Zhejiang University of Technology, Hangzhou, China
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Lin Zhang
Zhejiang University of Technology, Hangzhou, China
Yuanjian Hong
Zhejiang University of Technology, Hangzhou, China
Jinyang Zheng
Zhejiang University of Technology, Hangzhou, China
Bai An
National Institute of Advanced Industrial Science and Technology, Tsukaba, Japan
Chengshuang Zhou
Zhejiang University of Technology, Hangzhou, China
Paper No:
PVP2017-66185, V06BT06A047; 9 pages
Published Online:
October 26, 2017
Citation
Zhang, L, Hong, Y, Zheng, J, An, B, & Zhou, C. "Hydrogen Effect on the Deformation Behavior of Austenitic Stainless Steels Investigated by Nanoindentation." Proceedings of the ASME 2017 Pressure Vessels and Piping Conference. Volume 6B: Materials and Fabrication. Waikoloa, Hawaii, USA. July 16–20, 2017. V06BT06A047. ASME. https://doi.org/10.1115/PVP2017-66185
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