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发明公开
CN110484908A 铁基合金表面激光熔覆耐磨耐锌蚀钴基合金涂层的工艺 审中-实审

铁基合金表面激光熔覆耐磨耐锌蚀钴基合金涂层的工艺
摘要：
本发明提供一种铁基合金表面激光熔覆耐磨耐锌蚀钴基合金涂层的工艺，包括以下步骤：按以下摩尔质量百分比进行粉体原料配料：C-0.08％，Cr-18％，Si-3.4％，Fe-1.5％，Mo-28.5％，Ni-1.5％，钴包WC-5％，Co-ba；上述配料经过混合后形成钴基涂层粉末材料；对铁基合金进行预热，并保持铁基合金表面温度在600℃以上；然后在铁基合金表面采用半导体激光器激光熔覆所述钴基涂层粉末材料，形成耐磨耐蚀的熔覆涂层，涂层厚度在0.5-1.5mm。采用本发明的铁基合金表面激光熔覆耐磨耐锌蚀钴基合金涂层的工艺制备耐磨涂层，可有效抑制熔融锌对钴基涂层的侵蚀，提高涂层耐磨性能。
摘要（英）：

The invention provides a process for laser cladding wear-resistant and zinc-corrosion-resistant cobalt-based alloy coating on the surface of an iron-based alloy. The process comprises the following steps of mixing the following raw materials of, in percentage by mass, 0.08% of C, 18% Cr, 3.4% Si, 1.5% Fe, 28.5% Mo, 1.5% Ni, 5% of cobalt-coated WC and Co-ba; and the process comprises the followingsteps of mixing to form a cobalt-based coating powder material; preheating the iron-based alloy, and keeping the temperature of the surface of the iron-based alloy 600 DEG C or above; and then laser cladding the cobalt-based coating powder material on the surface of the iron-based alloy by adopting a semiconductor laser to form a wear-resistant corrosion-resistant cladding coating, and the thickness of the coating is 0.5-1.5 mm. By adopting the process for preparing the wear-resistant zinc-corrosion-resistant cobalt-based alloy coating on the surface of the iron-based alloy, the wear-resistantcoating is prepared, so that the erosion of the molten zinc to the cobalt-based coating can be effectively inhibited, and the wear resistance of the coating is improved.

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