抄録
The wear phenomenon of carbon steel, which previously heat treated, that is, normarized, annealed, oil quenched, water quenched and tempered, was studied by using 24-48 mesh Hirose River sand as a soil. In the case of the humidity and granulation of soil, and running velocity of specimen are constant, the amount of wear is increase almost linearly with running distance regardless of tee hardness, heat treatment and the amount of carbon in steel. The amount of wear is rapidly decrease with increasing amount of carbon content but the rate of decrease is little at above 0.7 per cent of carbon. The amount of wear is rapidly increase with elevation of tempering temperature and decrease with hardness.
