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| The Densification of Rapid Solidification High Temperature Titanium Alloy Powder by Hot Isostatic Pressing |
LI Shaoqiang1, 2 CHEN Zhiyong1 WANG Zhihong3 LIU Jianrong1 WANG Qingjiang1*
YANG Rui1 |
1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
2. Western Superconducting Technologies Co. Ltd., Xi'an 710018
3. AVIC Shenyang Engine Design & Research Inistitute, Shenyang 110000 |
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Cite this article:
LI Shaoqiang,CHEN Zhiyong WANG Zhihong LIU Jianrong WANG Qingjiang*
YANG Rui. The Densification of Rapid Solidification High Temperature Titanium Alloy Powder by Hot Isostatic Pressing. Chinese Journal of Materials Research, 2013, 27(1): 97-102.
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Abstract ABSTRACT The densification process and mechanism of a rapid solidification high temperature titanium alloy by hot isostatic pressing has been investigated systemically. The relative density of the hot isostatic pressing (HIP) specimen at 500 ℃ increased from the initial packing density of 64.5% to 81% through approaching and rearrangement of powder particles. The relative density of the specimen HIPed at 500-700 ℃ increased to 97% through plastic deformation of powder particles during which the interparticle contact areas become larger. The relative density of the specimen HIPed at above 700 ℃ increased through powder particles power-law creep and lattice / boundary diffusion.
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