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Complex heat-treatment effects on as-built CoCrMo alloy

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2018, 28(6), pp.250-255
  • DOI : 10.6111/JKCGCT.2018.28.6.250
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Published : December 31, 2018

Jung-Il Lee 1 Hyung Giun Kim 2 Kyung Hwan Jung 2 Kangmin Kim 2 Yong Son 2 Jeong-ho Ryu 1

1한국교통대학교
2한국생산기술연구원

Accredited

ABSTRACT

The CoCrMo as-built alloys prepared by 3D-printing process are studied on tensile strength, wear resistance, crystal structure and microstructure after complex heat-treatment including HIP. In this study, HIP treatment for removing micropores, ambient heat-treatment for formation of metal carbides, and solution heat-treatment for homogenization of the created metal carbides were tried and characterized for applying to artificial joint. The complex heat-treatment effects of the CoCrMo as-built alloys prepared by 3D-printing process were owing to the densification during HIP, formation of metal carbides and homogenization of the created metal carbides. The effects of the complex heat-treatment were confirmed by XRD, FE-SEM and EDS.

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