抄録
The effects of both the frictional speed and the surface load on the wear at high temperature were studied. Carbon steel, high chromium ferrite steel and 18-8 stainless steel sample were employed. These were the ones which showed typical aspects of wear in my previous experiments. With carbon steel, the minimum of wear loss appears under the same condition in all the tested surface load. But with high chromium steel and 18-8 stainless steel, the minimum appears at higher speed and the temperature at which the minimum appears decreases with the increasing load. Seizing and galling at high temperature occur at lower speed on 18-8 stainless steel and at all speed on high chromium steel; especially the latter suffers under higher load. These seizing and galling are ascribed to the lesser oxidation. The results are discussed from the view point of its strength and the oxidation and are explained under certain assumption.