JOM

, Volume 70, Issue 5, pp 621–625 | Cite as

Experimental and Numerical Analysis of Injection Molding of Ti-6Al-4V Powders for High-Performance Titanium Parts

Powder Metallurgy of Non-Ferrous Metals
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Abstract

Both experimental and numerical analysis of powder injection molding (PIM) of Ti-6Al-4V alloy were performed to prepare a defect-free high-performance Ti-6Al-4V part with low carbon/oxygen contents. The prepared feedstock was characterized with specific experiments to identify its viscosity, pressure–volume–temperature and thermal properties to simulate its injection molding process. A finite-element-based numerical scheme was employed to simulate the thermomechanical process during the injection molding. In addition, the injection molding, debinding, sintering and hot isostatic pressing processes were performed in sequence to prepare the PIMed parts. With optimized processing conditions, the PIMed Ti-6Al-4V part exhibits excellent physical and mechanical properties, showing a final density of 99.8%, tensile strength of 973 MPa and elongation of 16%.

Notes

Acknowledgement

This work was supported by the research project of the Civil Military Technology Cooperation Program and National Research Foundation of Korea (NRF) Grant funded by the Korea government (MSIT) (No. 2011-0030075).

Supplementary material

11837_2018_2786_MOESM1_ESM.pdf (168 kb)
Supplementary material 1 (PDF 168 kb)

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringPohang University of Science and TechnologyPohangRepublic of Korea
  2. 2.School of Aerospace and Mechanical EngineeringKorea Aerospace UniversityGoyang-siRepublic of Korea
  3. 3.CetaTech, Inc, GTIC 296-3SacheonRepublic of Korea

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