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| Numerical simulation of the effect of initial relative density distribution on densification process of Ti6A14V powder during hot isostatic pressing |
| MA Lei1，CHE Hong-yan2,3，CAO Rui1，CHEN Jian-hong1 |
（1. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metal， Lanzhou University of Technology， Lanzhou 730050， China
2. Advanced Technology & Materials Co.， Ltd.， Beijing 100081， China
3. Engineering and Technology Research Center of Hot Isostatic Pressing， Zhuozhou 072750， China） |
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Abstract To investigate the effect of initial relative density distribution on the densification behavior of titanium alloy powder during hot isostatic pressing （HIP）， the finite element software （MSC.Marc） was used to simulate HIP process of Ti6A14V metal powder. The rheological behavior of the powders under different relative density distributions was compared. Meanwhile， the densification mechanism at different stages and the effect of different initial relative density distributions on the final forming of compacts were investigated. The results indicate that the simulated degree of deformation in consideration of the initial relative density inhomogeneous distribution is consistent with the testing results. The maximum relative error for deformation is less than 1.2%. The numerical simulation can predict the HIP process， provide a guidance， and build a basis for optimal design of complex shape containers.
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Received: 08 May 2017
Published: 24 December 2018
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2018, Vol. 28 
