| 摘要 |
Composite materials comprising a hard ceramic phase and an infiltration alloy are disclosed. The hard ceramic phase may comprise a carbide such as tungsten carbide and/or cast carbide. The infiltration alloy is a heat treatable Cu-based alloy comprising Ni and Mn. The infiltration alloy may be substantially free of Sn and Zn. The composite material is heat treated in order to improve its mechanical properties. For example, the composition of the Cu-Ni-Mn infiltration alloy may be selected such that its hardness, wear resistance, toughness and/or transverse rupture strength are improved after the composite material is solutionized, cooled and thermally aged.
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