High-performance integrated additive manufacturing with laser shock peening –induced microstructural evolution and improvement in mechanical properties of Ti6Al4V alloy components
作者: Jinzhong LuHaifei LuXiang XuJianhua YaoJie CaiKaiyu Luo
作者单位: 1School of Mechanical Engineering, Jiangsu University, Xuefu Road 301, Jingkou District, Zhenjiang, 212013, PR China
2Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou, 310014, PR China
刊名: International Journal of Machine Tools and Manufacture, 2020, Vol.148
来源数据库: Elsevier Journal
DOI: 10.1016/j.ijmachtools.2019.103475
关键词: Laser shock peeningSelective laser meltingBuilding directionTi6Al4V alloyResidual stressTensile propertiesTEM observationMicrostructure
原始语种摘要: Abstract(#br)High-performance integrated additive manufacturing with laser shock peening (LSP), is an innovative selective laser melting (SLM) method to improve mechanical properties, and refine microstructure in the surface layer of metallic components. Phase, residual stress distribution, surface micro-hardness, tensile properties and microstructural evolution of SLMed and SLM-LSPed specimens in horizontal and vertical directions were examined. In particular, typical microstructural features in the surface layer were characterized by transmission electron microscopy (TEM) observations. Results indicated that surface micro-hardness subjected to massive LSP treatment had significantly improved, tensile residual stress was transformed into compressive residual stress by LSP-induced plastic...
全文获取路径: Elsevier  (合作)

  • manufacturing 制造
  • improvement 改良
  • integrated 综[组,复]合
  • performance 性能
  • properties 道具
  • peening 冷作硬化
  • alloy 合金
  • induced 感应的
  • laser 激光
  • mechanical 机械的