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首页> 外文期刊>Journal of Korean Institute of Metal and Materials >Hardness and Corrosion Resistance of Surface Composites Fabricated by High-energy Electron-beam Irradiation of Fe-based Amorphous Alloy Powders
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Hardness and Corrosion Resistance of Surface Composites Fabricated by High-energy Electron-beam Irradiation of Fe-based Amorphous Alloy Powders

机译：铁基非晶态合金粉的高能电子束辐照制备的表面复合材料的硬度和耐蚀性

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摘要

Hardness and corrosion resistance of surface composites fabricated by high-energy electron-beam irradiation of Fe-based amorphous alloy powders were investigated. Amorphous powders were deposited on a plain carbon steel substrate, and then electron beam was irradiated on these powders without flux to fabricate a one-layered surface composite. A two-layered surface composite was also fabricated by irradiating electron beam again onto the powders deposited on the one-layered surface composite. The two-layered composite contained a large amount (up to 48 vol. percent) of hard Cr_2B crystalline phases in the Cr_(0.19)Fe_(0.7)Ni_(0.11) matrix, and thus its hardness was 3 times greater than that of the steel substrate. The corrosion resistance of the two-layered composite was better than that of an stainless steel or a coating fabricated by high-velocity oxygen fuel spraying of Fe-based amorphous powders because it contained Cr_2B phases having good corrosion resistance without pores or cracks. These findings suggested that various applications of the fabricated surface composites to materials requiring high resistance to wear and corrosion were expected.
机译：研究了高能电子束辐照铁基非晶态合金粉末制备的表面复合材料的硬度和耐蚀性。将无定形粉末沉积在普通的碳钢基底上，然后在没有助熔剂的情况下将电子束照射在这些粉末上，以制造一层表面复合材料。还通过将电子束再次照射到沉积在一层表面复合材料上的粉末上来制造两层表面复合材料。该两层复合材料在Cr_（0.19）Fe_（0.7）Ni_（0.11）基体中包含大量（至多48％（体积））的硬Cr_2B晶相，因此其硬度是C_（0.19）Fe_（0.7）Ni_（0.11）的三倍。钢基材。两层复合材料的耐蚀性优于不锈钢或通过高速氧燃料喷射铁基非晶态粉末制成的涂层，因为它含有具有良好耐蚀性的Cr_2B相，而没有孔或裂纹。这些发现表明，期望将所制造的表面复合材料应用于需要高耐磨性和耐腐蚀性的材料。

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