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초록
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.
키워드
thermal spray; HVOF; WC-Co-Cr; powder mixing; porosity; wear; WEAR BEHAVIOR; HVOF; CARBIDE; EROSION; PLASMA
- 제목
- Effects of Powder Mixing on the Mechanical Properties of Thermally Sprayed WC-Co-Cr Coating Layers
- 저자
- Lee, Chang Woo; Han, Jun Hyun; Shin, Myung Chul; Kwun, S. I.
- 발행일
- 2009-05
- 유형
- Article
- 저널명
- 대한금속·재료학회지
- 권
- 47
- 호
- 5
- 페이지
- 290 ~ 296