Quantitative Relationships between Microstructures and Hardness of as-cast Ti-6A1-4V Titanium Alloy

摘要：

Based on stereology and quantitative Metallography,digital image measure methods of β grain size and α lamella space in as-cast Ti-6Al-4V titanium alloy were developed, with which the microstructure were evaluated and the relationships between microstructures and hardness of as-cast Ti6Al-4V titanium alloy with different plate thickness were investigated. The results show that,there are positive linear relationships between cast plate thickness and β grain size or αlamina thickness of Ti-6Al-4V alloy. The relationships between microhardness and orlamina thickness or β grain size of as-cast Ti6Al-4V alloy plate were obtained, and the results could be explained by Hall-Petch strengthening.

关键词： Titanium alloy microstructure hardness quantitative analysis

作者: Nan Hai Wu Guoqing Zhao Jiaqi Yang Weiguang Dang Ning

作者单位: Beijing Institute of Aeronautical Materials,Beijing 100095 School of Material Science and Engineering,Beihang University,Beijing 100191

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 650-652

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）