Temperature field, microstructure and mechanical properties of inertia friction welded nickel-based superalloy FGH96 joints
The complete process of inertia friction welding (IFW) of nickel-based superalloy FGH96 was simulated using a fully thermo-mechanical coupled 2-D finite element model. The transient temperature and strain fields were calculated. Moreover, the experiment was conducted with the same parameters as the simulation. Results show that the simulated temperature evolution quite captures the experiment. Furthermore, combining with the joint microstructure observation by optical microscope and scanning electron microscope, the formation and distribution mechanisms of various sizes grains were discussed with the simulated equivalent plastic strain profiles. Additionally, the IFW FGH96 joint shows a quite comparable tensile property to the parent material, and the maximum microhardness of 500Hv was obtained at the thermo-mechanically affected zone.
Inertia friction welding Nickel-based superalloy Finite element modeling Temperature field Strain field Microstructure evolution
Feifan Wang Wenya Li Jinglong Li Dalu Gao
State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, PR China
国际会议
济南
英文
1-13
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）