Authors: Shun Zhou Bo Song Pengju Xue Chao Cai Jie Liu Yusheng Shi
Publish Date: 2016/04/20
Volume: 88, Issue: 1-4, Pages: 19-31
Abstract
Hot isostatic pressing of metal powders involves a complex thermal and mechanical coupling process A constitutive model based on Perzyna’s elasticviscoplasticity equation was proposed and a Lagrangian finite element method was applied to analyze the large deformation nonlinear friction powder flow and densification behavior during hot isostatic pressing The mechanical behavior of the powders was analyzed in terms of stress distribution For comparison to the simulation results the density shape deformation and residual stress of the specimens were evaluated using Archimedes’ principle 3D measuring technology and Empyrean Xray diffractometer
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