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논문 기본 정보

자료유형
학술저널
저자정보
Ji Hyeon Bak (Pusan National University) Dae Hyun Cho (Pusan National University) Sunmi Shin (Korea Institute of Industrial Technology) Jin Young Park (Korea Institute of Industrial Technology) 박익민 (부산대학교)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.24 No.1
발행연도
2018.1
수록면
205 - 215 (11page)

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Engine bearing materials need improved wear resistance to withstand high speeds and heavy loads. To meet therequirements of bearing materials, a new metal matrix composite (MMC) was designed. Here, the hybrid aluminumborate whisker (Al18B4O33, ABO) + hexagonal boron nitride (BN) + carbon nanotubes (CNTs)/Al-5Sn alloyMMCs were fabricated by squeeze infiltration. The wear properties of the hybrid MMCs were evaluated using aball-on-disk tester. The effect of hybridization of ABO, BN, and CNTs on the wear properties of the Al-Sn MMCswas investigated. The microstructure of the hybrid MMCs showed a uniform distribution of the reinforcements. The wear resistance of the Al-5Sn alloy improved with the addition of ABO. The wear properties of the ABO+BN/Al-Sn and ABO+CNT/Al-Sn MMCs were considerably enhanced compared to those of the ABO reinforced Al-Sn MMC because of the lubricating characteristic of BN and CNTs, and the CNTs were more effective than BN. The friction coefficient and wear rate of 20ABO+5BN+5CNT/Al-Sn MMC decreased by 1/4 and 1/20, respectively,compared to that of the ABO/Al-Sn MMC.

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