（1. School of Material Science and Engineering， Kunming University of Science and Technology， Kunming 650093，Yunnan， China 2. Engineering Institate of steel， Central Iron and Steel Research Institute， Beijing 100081， China 3. Technology Department Panyu Chu Kong Steel Pipe zhuhai Co.， Ltd.， Panyu 511450， Guangdong， China.）
Abstract：The influence of microstructure on hydrogen induced cracking (HIC) of high strength pipeline steel was studied through scanning electron microscopy (SEM)， electron backscatter diffraction (EBSD) and other testing methods?from?two?aspects: organizational structure and grain boundary structure. The results indicate that high content and big block of M/A island will lead to obvious hydrogen induced cracking (HIC). Instead， the sensitivity of hydrogen induced cracking (HIC) will reduce through increasing the uniformity of organization. Furthermore， HIC of pipeline steel will grow along the large angle grain boundaries. On the contrary， HIC can be partly prevented on small-angle grain boundaries.
收稿日期: 2014-07-21
出版日期: 2015-04-13
引用本文:
陈 健，汪 兵，胡 亮，刘清友，刘 翔. 高强度管线钢微观组织对氢致裂纹的影响[J]. 钢铁, 2015, 50(4): 48-52.
CHEN Jian，，WANG Bing，HU Liang，LIU Qing-you，LIU Xiang. Effects of hydrogen induced cracking on the microstructure of high strength pipeline steel. Iron and Steel, 2015, 50(4): 48-52.
2015, Vol. 50 
