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发明授权
CN101054667B 激光修复高硬度发动机制件报废模具的材料和制法及应用 失效 - 权利终止

激光修复高硬度发动机制件报废模具的材料和制法及应用
摘要：
本发明公开了一种激光熔覆修复高硬度发动机制件报废模具的材料和制法及应用，按照重量组分计算：它是由C 0.2～0.5份、Cr 10～20份、Si 1.8～3.4份、B 1.5～2.8份、Fe66～78份、Ni 2.5～3.4份、Mo 0～2份和V 0～2份组成的。与现有技术相比，在本发明工艺条件下，激光熔覆粉末材料后，所形成的涂层中无裂纹孔洞产生，从而大大降低了熔覆层的开裂敏感性。而且本发明所用的合金粉末材料流动性好，并添加了强碳化物形成元素Mo和/或V，可用于报废的一系列较高硬度(HRC＝50～60)的低、中碳钢或低、中碳合金钢制件的激光熔覆修复。
摘要（英）：

The invention discloses a material for laser melting, coating and repairing high-stiffness discarded modules for producing engine parts and preparing and using thereof. The material is composed of the following components in mass share: C 0.2-0.5, Cr 10-20, Si 1.8-3.4, B 1.5-2.8, Fe 66-78, Ni 2.5-3.4, Mo 0-2 and V 0-2. Compared with the present techniques, the formed coats after laser melting andcoating powder materials under the processing conditions of the invention have no cracks or holes, which greatly reduce the crack sensitivity of the melting and coating layer. In addition, the alloy powder materials used in the invention has good fluidity and the produced element Mo and/or V by adding strong carbide in the alloy powder materials can be used for laser melting, coating and repairing the series of discarded high-stiffness (HRC=50-60) low and medium carbon steel or low and medium alloy steel.

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