炭化ケイ素，鋼およびアルミニウムと摩擦したアルミニウムの水中での摩擦摩耗特性

摘要

Aluminum disk was slid against silicon carbide (SiC) pin, SUS 440 C stainless steel pin and aluminum pin in distilled water to evaluate lubrication compatibility. The friction and wear behavior of aluminum disk was influenced by the pin material. The both wear of disk and pin of aluminum/SiC pair, aluminum/SUS 440 C stainless steel pair and aluminum/aluminum pair increased in that order. Friction of aluminum/SiC pair, aluminum/aluminum pair and alumi­num/SUS 440 C stainless steel pair increased in that order. In all pairs, tribo-oxidation took place on the aluminum disk surface during sliding in water and the resulting aluminum oxide deposited on the sliding surfaces. In the case of aluminum/SiC pair and aluminum/SUS 440 C stainless steel pair, the aluminum oxide inhibited aluminum adhesion to SiC pin and SUS 440 C stainless steel pin effectively and abraded the disk and pin surfaces. On the other hand, severe adhesive wear took place on the sliding surfaces of aluminum/aluminum pair.%1．はじめにアルミニウムは耐食性および熱伝導性に優れた軽量材料であり，水はCO2を排出しない流体である．軽量のアルミニウムをしゅう動部材として用いて機器の運転効率を向上し，水を作動流体や潤滑剤として使用することは，機器の使用に伴うCO2排出量の削減に貢献できると期待される．