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Formation of Hard Surfacing Layers by Electron Beam Cladding with Powder Feeder

机译:粉末给料机电子束熔覆形成硬质堆焊层

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摘要

Hard surfacing layers of Ni-based self-fusing alloy and Cr3C2 + NiCr alloy were formed using powder and an electron beam. The microstructure of electron beam cladding layer was investigated experimentally by using optical microscopy and electron probe microanalyzer (EPMA). The cladding layers were examined using the Vickers hardness test, a sand erosion test and an immersion corrosion test. These tests showed excellent erosion and corrosion resistance of the layers. The Ni-based self-fusing alloy and Cr3C2+NiCr alloy layers showed high hardness of 804HV and 791HV, respectively.
机译:使用粉末和电子束形成Ni基自熔合金和Cr3C2 + NiCr合金的硬质表面层。利用光学显微镜和电子探针显微分析仪(EPMA)对电子束熔覆层的微观结构进行了实验研究。使用维氏硬度试验,沙蚀试验和浸没腐蚀试验检查覆层。这些测试表明这些层具有优异的抗侵蚀性和耐腐蚀性。 Ni基自熔合金层和Cr3C2 + NiCr合金层分别显示出804HV和791HV的高硬度。

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