Experimental investigation of hydrogen effect on mechanical properties of 304L stainless steel

Yong Jiang, Jianming Gong, Jianqun Tang, Luyang Geng

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

Hydrogenation reactor is one of the key equipments in the production process of purified terephthalic acid (PTA).The safe and reliable operation of hydrogenation reactor decides the safety of PTA installation. Service experience has shown that some longitudinal cracks occurred on the internal wall of the 304L stainless steel(SS) hydrogen nozzle. In this paper, a series of electrochemical hydrogen charging tests were carried out for 304L stainless steel at the ambient temperature. The comparison on mechanical properties was investigated before and after hydrogen charging in order to investigate the effect of mechanical properties of 304L SS. Fractography was analyzed by using scanning electron microscope (SEM). The results showed that the mechanical strength of 304L SS was not basically lost after hydrogen charging, but the ductility reduced in a certain extent. The fractography also showed the hydrogen embrittlement effect on the fracture.

源语言英语
主期刊名ASME 2008 Pressure Vessels and Piping Conference, PVP2008
211-216
页数6
版本PARTS A AND B
DOI
出版状态已出版 - 2008
活动ASME 2008 Pressure Vessels and Piping Conference, PVP2008 - Chicago, IL, 美国
期限: 27 7月 200831 7月 2008

出版系列

姓名American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
编号PARTS A AND B
6
ISSN(印刷版)0277-027X

会议

会议ASME 2008 Pressure Vessels and Piping Conference, PVP2008
国家/地区美国
Chicago, IL
时期27/07/0831/07/08

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