Metals and materials international

The Korean Institute of Metals and Materials (대한금속재료학회)
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Enhanced Densification and Hardness of Titanium Bodies Sintered by Advanced Hydrogen Sintering Process

  • Oh, Jung-Min (Division of Advanced Materials Engineering and Research Center for Advanced Materials Development, College of Engineering, Chonbuk National University) ;
  • Koo, Ja-Geon (Division of Advanced Materials Engineering and Research Center for Advanced Materials Development, College of Engineering, Chonbuk National University) ;
  • Lim, Jae-Won (Division of Advanced Materials Engineering and Research Center for Advanced Materials Development, College of Engineering, Chonbuk National University)
  • Received : 2018.02.20
  • Accepted : 2018.04.23
  • Published : 2018.11.20
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Abstract

A new sintering technique for enhancing a densification and hardness of sintered titanium body by supplying hydrogen was developed (Hydrogen Sintering Process, HSP). The HSP was developed by only injecting hydrogen into an argon atmosphere during the core time. As a result, sound titanium sintered bodies with high density and hardness were obtained by the HSP. In addition, a pore size and number of the HSP specimens were smaller than those of the argon atmosphere specimen. It was found that the injecting hydrogen into the argon atmosphere by HSP can prevent the formation of oxide layers, resulting in enhanced densification and hardness.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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