Microstructural variation at interface during Fiber laser joining of NiTi/Ti6Al4V and effect of mechanical strength
NiTi / Ti6Al4V光纤激光连接界面组织变化及机械强度的影响
作者: Suman ChatterjeeAnkit Kumar PandeySiba Sankar MahapatraKanwer Singh AroraAjit Behera
作者单位: 1Department of Mechanical Engineering, National Institute of Technology Rourkela, 769008 India
2Department of Mechanical Engineering, Indian Institute of Technology Bombay, 400076 India
3Research and Development, TATA Steel, Jamshedpur, 831007 India
4Department of Metallurgical and Materials Engineering, National Institute of Technology Rourkela, 769008 India
刊名: Journal of Materials Processing Tech., 2020, Vol.282
来源数据库: Elsevier Journal
DOI: 10.1016/j.jmatprotec.2020.116661
关键词: Dissimilar weldingFracture analysisNiTiTi6Al4VCuRadiographicInterlayer
原始语种摘要: Abstract(#br)Welding of nitinol (NiTi) shape memory alloy (SMA) and titanium-based alloy (Ti6Al4V) finds potential application in aerospace and medical industries. However, joining of these materials poses challenging issues because material properties of each material interacts to give rise to hybrid system performance. In the present study, copper was used as an intermediate layer to restrict the formation of brittle intermetallics during welding of NiTi with Ti6Al4V using laser welding. The formation of Cu 4 Ti 3 and CuNi 2 Ti complex phases attempts to minimize the formation of brittle phases like Ti 2 Ni. It was observed that the maximum welding strength of 353 MPa could be achieved at 800 W laser power and 17 mm/s scan speed. Physical analysis of weldments indicates the presence of...
全文获取路径: Elsevier  (合作)
影响因子:1.953 (2012)

  • strength 强度
  • mechanical 机械的
  • variation 变异
  • laser 激光
  • tensile 拉的
  • formation 建造
  • material 充填料
  • intermediate 中频
  • brittle 脆的
  • welding 熔结