Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
권호 표지

Effects of Powder Mixing on the Mechanical Properties of Thermally Sprayed WC-Co-Cr Coating Layers

WC-Co-Cr 용사코팅시 분말의 혼합이 코팅층의 기계적 특성에 미치는 영향

  • Lee, Chang Woo (Thermal Spray Research Lab., Shin Hwa Metal Co., Ltd) ;
  • Han, Jun Hyun (Advanced Functional Materials Research Center, Korea Institute of Science & Technology) ;
  • Shin, Myung Chul (Thermal Spray Research Lab., Shin Hwa Metal Co., Ltd) ;
  • Kwun, S.I. (Department of Materials Science and Engineering, Korea University)
  • 이창우 (신화금속 용사기술연구소) ;
  • 한준현 (한국과학기술연구원 기능금속연구센타) ;
  • 신명철 (신화금속 용사기술연구소) ;
  • 권숙인 (고려대학교 신소재공학과)
  • Received : 2008.11.01
  • Published : 2009.05.25
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Abstract

We report on the effects of mixing of powders with various particle sizes on fracture toughness and wear resistance of thermally sprayed WC-10Co-4Cr coating layers fabricated by HVOF (high-velocity oxygen fuel) process. The size and the mixing ratio of powders were changed in order to get high fracture toughness and wear resistance. The mixing of small amount of coarse powders with fine powders resulted in the highest fracture toughness and wear resistance due to the lowest porosity in coating layers.

Keywords

Acknowledgement

Supported by : 한국과학기술연구원

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