2406 CrN薄膜被覆鋼の疲労強度に及ぼす膜性状の影響(S09-1 新表面改質技術と皮膜物性・特性,S09 表面改質)

概要

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Chromium nitride films were coated at two different bias voltages (V_B=-20V, -300V) on JIS S45C medium carbon steel by arc ion plating method. Influence of bias voltage on a droplet size distribution was examined and the maximum defect size was estimated on the basis of experimental fatigue strength and film hardness. As the results, larger number of droplets was observed at the film surface deposited by low bias voltage in comparison with the film deposited by high bias voltage. A part of droplets were also observed in the film. The estimated defect size √<area_<max>> was much larger than observed droplet size. It suggests that the droplet size is not predominant factor in the increase of fatigue strength for low bias voltage samples.
一般社団法人日本機械学会の論文
2007-09-07