The effect of temperature on the segregation and deformation mechanism of α+Ti2Cu alloy during semi-solid forging

摘要：

　　The segregation behavior and deformation mechanism of Ti14,a new typical α+Ti2Cu alloy,during semi-solid forging at different temperatures were investigated.The results reveal that temperature affect the content and distribution of liquid phase,more segregated and motivated to grain boundaries at higher temperature during the forging,which changed distribution of Ti2Cu on grain boundaries from discontinuous to continuous.The varieties of the grain boundary morphology led to transition of deformation mechanism from plastic deformation of solid to sliding between solid particles.Moreover,the macrosegregation of liquid and solid during the semi-solid forging was observed,and discussed by phenomenological model.

关键词： Titanium alloy Semi-solid forging Segregation Deformation mechanism

作者: Yongna Chen Jianfeng Wei Yongqing Zhao Xuemin Zhang

作者单位: School of materials Science and Engineering,Changan University,710064,Peoples Republic of China State-key Laboratory for Mechanical Behavior of Material,Xian Jiaotong University,Xian 710049,Peop Northwest Institute for Nonferrous Metal Research,Xian 710016,Peoples Republic of China

会议类型: 国际会议

会议名称: 2012海峡两岸破坏科学材料试验学术会议

会议地点: 西安

会议语种:英文

页码: 1-8

在线出版日期: 2012-10-01（万方平台首次上网日期，不代表论文的发表时间）