Surface coating by diamond particles on an aluminum substrate by underwater shock wave

Tanaka, Shigeru; Hokamoto, Kazuyuki; Torii, Shuki; Touge, Mutsumi; Itoh, Shigeru

doi:10.1016/j.jmatprotec.2009.08.023

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…And it may have low abrasive property because of the flat contact asperities as well as the low amount of iron transfer around the diamond particles. Normally, diamond coatings like the shock wave diamond coating 11 show much high friction because of the relatively sharp and high fraction of diamond on the surface, because it is much more difficult to abrade such many ultra hard asperities. In contrast, the diamond-dispersed ADC12 sliding against HSS showed ultra low friction and negligibly small wear volume.…”

Section: Resultsmentioning

confidence: 99%

“…One of the ideas is dispersing other hard particles in the matrix in addition to the Si precipitates. For example, particle reinforcement using hard particles such as SiC or Al 2 O 3 6–8 and hard particle implantation into the surface using surface treatments such as fine particle peening 9,10 or shock waves 11 have been developed. Because of the higher production costs of the particle-reinforced materials, it is advantageous to disperse the necessary hard particles in the surfaces of products manufactured in near-net shape.…”

Section: Introductionmentioning

confidence: 99%

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Tribological properties of aluminium–12 wt% silicon alloy surface treated with dispersed hard particles during sliding against different steels

Nakase

Katō

Kobayashi

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part J:

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ADC12 is a eutectic Al–Si die-cast alloy (Al–12Si) widely used instead of cast iron for industrial parts in order to reduce their weight. Here, to improve the wear resistance, SiC and diamond particles were dispersed into the surface of the ADC12 alloy. The tribological properties of the hard-particle-dispersed ADC12 samples under lubrication were evaluated using a vane-on-plate tribometer and compared to those of hypereutectic Al–Si alloy (Al–15Si). Three different kinds of vane materials, carbon steel, die steel and high-speed steel, were used as counter materials. The diamond-dispersed ADC12 alloy showed the most significant wear reduction effect when sliding against die steel and high-speed steel, and the lowest coefficient of friction was obtained when high-speed steel was used as the counter material. The durability tests using a conventional pump and the modified materials confirmed the significant improvement in the wear resistance of hard-particle-dispersed ADC12.

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Section: Resultsmentioning

confidence: 99%