The Effect of Cryogenic Treatment on the Microstructure and Properties of Ti-6Al-4V Titanium Alloy

摘要：

　　The effect of cryogenic treatment on the microstructure and properties of Ti-6Al-4V has been studied in this paper.The program controlled SLX cryogenic box was used to conduct the cryogenic treatment and the subsequent low temperature temper.The scanning electron microscope was used to study the morphology of microstructure and fracture surface.As the results show that the cryogenic treatment increases the elongation of Ti-6Al-4V from 16.5 percent to 24.5 percent,at the same time,the strength increases slightly,this indicates that cryogenic treatment can improve the comprehensive mechanical properties.The microstructure measurement revealed that there is a tendency of reduction in the precipitated particles after cryogenic treatment.The cross section is flat and the size of dimples is more uniform.It is concluded that the change in the precipitation particle had a great influence in the mechanical properties.

关键词： Ti-6Al-4V Cryogenic treatment Microstructure Tensile properties

作者: Kaixuan Gu Zhiqiang Li Junjie Wang Yuan Zhou Hong Zhang Bing Zhao Wei Ji

作者单位: Key Laboratory of Cryogenics, TIPC, Chinese Academy of Sciences, Beijing 100190, China;Graduate Univ AVIC Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China Key Laboratory of Cryogenics, TIPC, Chinese Academy of Sciences, Beijing 100190, China Graduate University of Chinese Academy of Sciences, Beijing 100049, 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: 899-903

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）