Hardfaced metal surface and method of manufacture

An apparatus is disclosed as including a first material volume with at least a hardened portion and a second material volume that includes at least two layers. The first material volume is composed ofat least a hardenable alloy of steel. The at least two layers is located adjacent to a first surface comprising the hardened portion of the first material volume. The at least two layers includes a first layer composed of at least a ductile low-carbon alloy of steel and a second layer composed of at least a cobalt-based hardfacing over the first layer. The apparatus is applicable in preparing shear ram blocks and shear ram blades to provide a hardened blade edge with an adjacent hardfacing surface. 设备公开为包括具有至少硬化部分的第一材料体积和包括至少两个层的第二材料体积。该第一材料体积由至少钢的可硬化合金构成。该至少两个层与包括该第一材料体积的该硬化部分的第一表面相邻定位。该至少两个层包括由至少钢的可延展低碳合金构成的第一层和在该第一层上方的由至少钴基硬面构成的第二层。该设备适用于制备剪切闸板块和剪切闸板刀片，以提供具有相邻的硬面表面的硬化刀刃。