%0 Journal Article %A Aryanpour, Gholamreza %D 2006 %I Begell House %N 1 %P 15-34 %R 10.1615/JPorMedia.v9.i1.20 %T Constitutive Modeling for Hot Isostatic Pressing of Metal Powders %U https://www.dl.begellhouse.com/journals/49dcde6d4c0809db,7523087741bc408e,16c0cb1b7a1da66f.html %V 9 %X A phenomenological constitutive modeling is proposed for thermomechanical behavior of materials during hot isostatic pressing (HIP) of metal powders. Based on the same approach for the can and powder materials, this modeling deals with an elasto-plastic-viscoplastic concept for material deformation. The model's advantage is its applicability to a larger domain of stress and temperature in comparison to the plastic or ideal viscoplastic models. For elasto-plastic-viscoplastic modeling, the necessary formalisms to calculate the plastic and viscoplastic contributions of inelastic deformation are firstly introduced. A major part of the paper concerns formulating the model, especially the plastic contribution. Identification of the model parameters by some experiments presented in the literature and the model validation by some new experiments will be explained after theoretical assessment of the model. %8 2006-02-01