| 학회 |
한국재료학회 |
| 학술대회 |
2004년 가을 (11/05 ~ 11/05, 인하대학교) |
| 권호 |
10권 2호 |
| 발표분야 |
기타 |
| 제목 |
폭발용사법을 이용한 경사기능 WC-Co 코팅 |
| 초록 |
Fabrication of two different types of functionally graded tungsten carbide cobalt (WC-Co) coatings has been tried by using detonation gun to enhance both the hardness in the surface region and the toughness of the coating. Five layers with a continuous compositional change of 75 to 92 wt.% of WC were sprayed to obtain ‘layer-structured gradient’ coatings. Each layer was controlled to have both minimum porosity and minimum phase decomposition of WC. New types of ‘continuously graded’ coatings were also fabricated to eliminate any obvious interfaces between layers by the ‘shot control method’ of detonation gun spraying. The wear resistance of these coatings was measured and compared to that of conventional WC-Co coatings by using dry sand abrasion tests under the condition of 20kg load and 200rpm rotating wheel. Present functionally graded coatings revealed more improved wear resistance than that of conventional coatings. |
| 저자 |
박성용1, 김문철2, 박찬경1
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| 소속 |
1포항공과대, 2포항산업과학(연) |
| 키워드 |
Functionally gradient materials; Tungsten carbide; Thermal spraying; Wear resistant coating
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| E-Mail |
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