Investigation on fretting wear behavior of 690 alloy in water under various temperatures

The aim of this paper is to assess the effect of water temperature (room temperature - RT, 60 °C and 90 °C) on fretting wear behavior of 690 alloy tubes against 405 stainless steel plates, and compare it with fretting in dry condition. Due to the lubrication effect, the presence of a thin water film likely precluded the metal-metal contact, and resulted in less wear. During the fretting process, water also washed the wear particles away from the contact zone leading to a decrease of abrasive wear. Consequently, the wear scars showed “U” shape profile along the fretting direction in water, while “W” shape in air.