| 摘要 |
PURPOSE:To obtain an easily sinterable cermet alloy having very high hardness by combining a hard phase based on the carbide of a transition metal and an Mo-Co-B compd. with a Co-based binding phase. CONSTITUTION:This cermet alloy consists of a hard phase based on an Mo-Co-B compd. and one or more among MC, MN and MCN (M is one or more kinds of groups IVa, Va and VIa transition metals of the periodic table) and a Co- based binding phase. The amt. of metallic Co in the binding phase is <=7wt.%. This cermet alloy is dense and has high hardness, excellent toughness and satisfactory characteristics as a tool material. |
