Fabrication of Zr55Al10Ni5Cu30 Amorphous Composite Coating on Plain Carbon Steel by Laser Cladding and Remelting
Fabrication of Zr55Al10Ni5Cu30 Amorphous Composite Coating on Plain Carbon Steel by Laser Cladding and Remelting
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DOI：
10.4028/www.scientific.net/msf.745-746.746
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发表时间：
2013-02
期刊：
影响因子：
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通讯作者：
Gao Jia;Wen Xian Wang;X. Liu;Ze-Qin Cui;Bingshe Xu
中科院分区：
文献类型：
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作者：
Gao Jia;Wen Xian Wang;X. Liu;Ze-Qin Cui;Bingshe Xu
采用激光熔覆技术在碳钢表面制备了Zr基非晶复合涂层。通过控制功率密度，可以调控涂层中非晶相的含量。研究了镀层中非晶相含量沿深度方向沿着变化对镀层显微硬度和耐蚀性的影响。结果表明，从重熔层到熔覆层，非晶相的含量明显减少。此外，涂层的最大显微硬度约为1061HV0.1，位于200 μm处。在3.56 wt.%中的动电位极化研究NaCl溶液中的腐蚀试验表明，由于非晶相含量高，重熔层具有良好的耐蚀性。
A Zr-based amorphous composite coating was fabricated by laser cladding and remelting on plain carbon steel. The amorphous phase contents of coatings were tailored by controlling the power density. The effect of amorphous phase content along the depth direction on the microhardness and corrosion resistance of the coating was studied. The results showed that the content of amorphous phase significantly decreased from the remelted layer to the cladded layer. In addition, it was found that the maximum microhardness of the coating were about 1061 HV0.1, observed 200 μm beneath the surface. Potentiodynamic polarization studies in 3.56 wt.% NaCl solution indicated that the remelted layer exhibited excellent corrosion resistance due to the high amount of amorphous phase.