Corrosion Wear Behavior of Aluminum Alloys in Contact with Rubber
Junnosuke MIZUTANI, Yoshiharu MUTOH, Satoru MIYASHITA and Sin CHOU
Abstract:It will be common understanding that soft material is worn off under wear test with hard material. However, there is possibility that hard material can be wear-damaged by soft material under particular circumstances. In the present study, wear damage behavior of aluminum alloy with rubber contact pad was investigated in air, water and 10%CaCl2 solution. The hard aluminum alloy A6061 was not damaged in the wear test with the soft rubber under air and water. However, the aluminum alloy A6061 was significantly worn in the wear test with rubber contact pad under 10%CaCl2 solution, while the cast aluminum alloy AC4C was not seriously worn. The significant wear in A6061 aluminum alloy would be caused by high Cu content and low Si content compared to the cast AC4C alloy. High Cu and low Si contents resulted in grain boundary corrosion under 10%CaCl2 solution and sliding contact of rubber will enhanced corrosion wear. Key Words:Corrosion wear, Aluminum alloy, Rubber, CaCl2, Grain boundary corrosion.