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- W4210266469 abstract "The healing behavior of shrinkage cavity inside the cast Ti6Al4V alloy during hot isostatic pressing (HIP) was investigated experimentally by interrupted hot isostatic pressing tests. The X-ray micro computed tomography was used to record the morphology changes before and after hot isostatic pressing. The two-dimensional geometry obtained by the microCT scan was used in simulation to study the evolution of the real shrinkage cavity during hot isostatic pressing. Shrinkage cavities, shrinkage porosity and small gas pores can be effectively eliminated under proper HIP conditions. The two-dimensional morphology in the simulation results agrees well with the experimental results. This study reveals that plastic deformation, creep and diffusion are the main mechanisms of cavity closure during hot isostatic pressing. In addition, the simplified elliptical pores with aspect ratios at different positions were used to replace the real pores to further study the factors affecting the position of dimples after HIP by simulation. It is found that the position of the dimples mainly depends on the aspect ratio of the elliptical pore and the distance between the pore surface and the external surface of the geometric model." @default.
- W4210266469 created "2022-02-08" @default.
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- W4210266469 date "2022-01-01" @default.
- W4210266469 modified "2023-10-16" @default.
- W4210266469 title "Finite element simulation of real cavity closure in cast Ti6Al4V alloy during hot isostatic pressing" @default.
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- W4210266469 doi "https://doi.org/10.1007/s41230-022-1173-4" @default.
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