Abstract
Rapid sintering within a few minutes is investigated under nitrogen-hydrogen gas atmosphere. Specimens were composited 0.8mass%C-1.5mass%Cu-bal. Fe powders and rapid sintering was carried out in the high frequency induction heating instrument. In the case added low H2 gas concentration from 1 to 2%, the radial crushing strength and the prevention of decarburization were almost same values compared to rapid sintering of 100% N2 gas atmmsphere. But, when increasing H2 gas concentration, it occurred to lower the radial crushing strength largely. As a result, this lowering tendency of radial crushing strength was caused to form FeOOH compound by the present of H2 gas and this compound prevented to diffusion of Cu elements.
