Prediction of hot deformation behavior of biomedical materials TiNiNb SMA

摘要：

　　The hot deformation behavior of biomedical material TiNiNb Shape Memory Alloy (SMA) was investigated by isothermal single-pass compression on Gleeble-3500 thermal simulator with the deformation temperature from 800℃ to 1050℃ and with the strain rate from 0.01 s-1 to 10 s-1.The results showed that the true stress-strain curves of TiNiNb SMA increased with decreasing deformation temperature and increasing strain rate,which indicated that the hot deformation behavior of biomedical material TiNiNb SMA was dynamic recrystallization.The hot compression deformation of TiNiNb SMA can be represented by Arrhenius model.The constitutive equation of TiNiNb SMA under hot compression deformation was calculated by a linear regression analysis The activation energy for hot deformation of the experimental steel is 126.92 kJ/mol.

关键词： TiNi shape memory alloy hot deformation flow stress activation energy constitutive equation

作者: Q.Liu G.Wu B.Duan H.B.Zhang

作者单位: Tubular Goods Research Institute of China National Petroleum Corporation, Xian, China

会议类型: 国际会议

会议名称: 2012 International Conference on Frontiers of Energy and Environmental Engineering(2012年第二届能源与环境工程前沿国际会议(ICFEEE2012))

会议地点: 香港

会议语种:英文

页码: 463-467

在线出版日期: 2012-12-01（万方平台首次上网日期，不代表论文的发表时间）