Microstructure and Tensile Properties of 1-D Forged (TiB+TiC)/Ti Composite

摘要：

　　In this work,2.5vol.% (TiB+TiC)/Ti composite was prepared by in situ casting route then 1-D forging.The microstructure and tensile properties were presented and discussed.The results indicate that the as cast microstructure can be significantly modified by 1-D forging.After forging,TiB and TiC segregated at the prior β grain boundaries within the as-cast composite tend to fracture and align perpendicular to forging direction.Reduction in aspect ratio of reinforcements and α lath is also observed.1-D forging can enhance the strength and elongation of as cast composite significantly.However,the increment in strength is quite limited as strain temperature increases to 700 ℃.Additionally,room temperature and high temperature fracture mechanisms are also discussed.

关键词： Titanium matrix composites Microstructure Tensile properties Forged

作者: Changjiang Zhang Fantao Kong Shulong Xiao Lijuan Xu Yuyong Chen Ningjia Deng We.Ge Guojun Xu

作者单位: National Key Laboratory of Science and Technology on Precision Heat Processing of Metals,Harbin Inst Nanjing Baotai Special Materials CO., LTD., Nanjin 211100, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 926-931

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）