Investigation of the Hydrogen Embrittlement on the 65Mn Steel from the Nuclear Power Plant with Small Punch Method

摘要：

Damage of metals due to the influence of hydrogen is quite frequent and leads to dangerous failures. The characteristics of the hydrogen embrittlemnt of the 65Mn steel were evaluated with small punch test. With the increment of the amount of the hydrogen absorbed into the alloy at room temperature, the strength and the toughness of the material reduce. From the small punch experimental results, it is found the total impact energy, the fracture strain and the fracture stress decrease with the increment of the cathodic hydrogen charging time. The fracture surfaces change from the typical ductile fracture with big voids to the typical intergranular brittle fracture mode after hydrogen absorbed in the specimens with higher charging current density.

关键词： Hydrogen embrittlement Small punch Fracture strain Cathodic charging 65Mn

作者: Zhao-Xi WANG Hui-Ji SHI Guo-Dong ZHANG Bao-Ping QU Jian LU Xian-Bo ZHAO

作者单位: Tsinghua University, Beijing 100084 China Suzhou Nuclear Power Research Institute, Suzhou 215004 Chi Tsinghua University, Beijing 100084 China Suzhou Nuclear Power Research Institute, Suzhou 215004 China The Hong Kong Polytechnic University, Kowloon, Hong Kong Qingdao Agricultural University, Qingdao, 266109 China

会议类型: 国际会议

会议名称: The 2nd International Conference on Advances in Product Development and Reliability(第二届产品开发与可靠性进展国际会议 PDR2010)

会议地点: 沈阳

会议语种:英文

页码: 206-210

在线出版日期: 2010-07-28（万方平台首次上网日期，不代表论文的发表时间）