Mechanical response of near-equiatomic NiTi alloy at dynamic high pressure and strain rate
作者: Xuping ZhangGuiji WangBinqiang LuoSimon N. BlandFuli TanFeng ZhaoJianheng ZhaoChengwei SunCangli Liu
作者单位: 1Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, China
2Imperial College London, Blackett Laboratory, London sw7 2az, United Kingdom
3The Peac Institute of Multiscale Sciences, Chengdu 610031, China
4China Academy of Engineering Physics, Mianyang 621999, China
刊名: Journal of Alloys and Compounds, 2018, Vol.731 , pp.569-576
来源数据库: Elsevier Journal
DOI: 10.1016/j.jallcom.2017.10.080
关键词: NiTi alloyEquation of stateConstitutive relationshipQuasi-isentropic compressionShock compression
英文摘要: Abstract(#br)Understanding the behavior of near equi-atomic NiTi alloys under high strain rates and high pressures is important for the development of shock mitigating structures, particularly those that protect satellite and space vehicles from the impact of hyper velocity space debris. In this paper, the equation of state and constitutive relationships of NiTi alloy at pressures of 20–50 GPa and strain rates from 10 4 s −1 to 10 7 s −1 were investigated by means of magnetically driven quasi-isentropic compression and by shock compression from the impact of magnetically launched flyer plates. An inflection point at a pressure of 2–3 GPa was found on plots of Lagrangian sound speed versus particle velocity in both quasi-isentropic and shock compression experiments, and it shows the...
全文获取路径: Elsevier  (合作)
影响因子:2.39 (2012)

  • dynamic 动力学的
  • strain 应变
  • alloy 合金
  • pressure 压力
  • response 响应