Effect of effective grain size and grain boundary of large misorientation on upper shelf energy in pipeline steels
作者： Xiaoli Zhang , Zhiqiang Jiang , Shixian Li , Jiwei Fan
DOI: 10.1007/S11595-016-1417-5
关键词:
摘要: X65, X70, and X80 belong to high grade pipeline steels. Toughness is one of the most important properties steels when transports gas or oil, means control toughness very for exploring even higher We established relationship between crystallographic parameters by studying using EBSD analyzing Charpy CVN X70 X80. The results show that effective grain size, frequency distribution boundary misorientation ratio angle small are parameters. finer boundaries (≥ 50°), more excellent will be.
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