| 摘要 |
<p>A vane made of sintered iron alloy containing uniformly dispersed hard carbides and comprising an iron-based matrix. The alloy consists of 0.7 - 1.5 wt% of C, 3.0 - 5.0 wt% of Cr, 0 - 10.0 wt% of Mo, 1 -20.0 wt% of W, 0.5 - 6.0 wt% of V, 0 - 15.0 wt% of Co and the balance of Fe and unavoidable impurities, and has a grain diameter of the hard carbide of up to 5 νm, the total theoretical density ratio of 80 ∩ 90 %, and a macro-hardness of 10 - 45 in terms of the Rockwell C scale by shaping the composition at a pressure of 5 - 8 tons/cm2 and sintering it below 1,250 °C.</p> |
