A Study of Hydrogen Embrittlement of SA-372 J Class High Pressure Hydrogen Storage Seamless Cylinder (≥100 MPA) |
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| Authors: | Ruifeng Yin Ruidong Fu Ningning Gu Yongjiu Liu |
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| Affiliation: | 1.State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;2.College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China;3.Shijiazhuang Enric Gas Equipment Co., Ltd., No. 169 Yuxiang Street, Shijiazhuang 051430, China |
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| Abstract: | The spinning process will lead to changes in the micro-structure and mechanical properties of the materials in different positions of the high-pressure hydrogen storage cylinder, which will show different hydrogen embrittlement resistance in the high-pressure hydrogen environment. In order to fully study the safety of hydrogen storage in large-volume seamless steel cylinders, this chapter associates the influence of the forming process with the deterioration of a high-pressure hydrogen cylinder (≥100 MPa). The anti-hydrogen embrittlement of SA-372 grade J steel at different locations of the formed cylinders was studied experimentally in three cylinders. The hydrogen embrittlement experiments were carried out according to method A of ISO 11114-4:2005. The relationship between tensile strength, microstructure, and hydrogen embrittlement is analyzed, which provides comprehensive and reliable data for the safety of hydrogen storage and transmission. |
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| Keywords: | SA-372 grade J steel hydrogen storage cylinder hydrogen embrittlement index disc test hydrogen embrittlement |
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