FeMoS合金粉末焼結体および溶射膜の摺動特性
スポンサーリンク
概要
- 論文の詳細を見る
In this development, the effects of composition and thermal treatment on microstructure and friction behavior of sintered and sprayed FeMoS alloy powders have been investigated. FeMoS alloy powders were made by water-atomization and reduction under H2 atmosphere. In case of sintering, specimens were prepared by pressing, sintering and annealing in vacuum. In case of spraying, specimens were prepared by Argon plasma spraying. In both cases, the composition of Mo varied from 17.1 to 28.8 mass %. The results are summarized as follows: (1) The microstructure of sintered FeMoS alloy became finer as Mo content increased. However, the microstructure of sprayed FeMoS alloy did not depend on Mo content. (2) In case of sintering, the surface area of Mo sulfide and FeMo sulfide became larger as Mo content increased. (3) In both case of sintering and spraying, friction coefficient became lower, as Mo content increased. (4) Sintered FeMoS alloy powders showed lower friction coefficient and wear-rate than sintered Cu-Sn-MoS2 or gray cast iron, the commercial oil-less bearing materials.