首页> 外文期刊>Journal of Iron and Steel Research International >Influence of Interfacial Diffusion on Mechanical Property of Vacuum Fusion Sinter (VFS) WC-Co Composite Coating
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Influence of Interfacial Diffusion on Mechanical Property of Vacuum Fusion Sinter (VFS) WC-Co Composite Coating

机译:界面扩散对真空熔结烧结矿WC-Co复合涂层力学性能的影响

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摘要

The WC-Co composite coatings bonded tightly to steel substrate have been made by vacuum fusion sinter (VFS). The concentration distribution of some components were measured by the electron probe, and the microstructure and morphology of VFS coatings were observed and analyzed by SEM, X-ray diffractometer and microhard-ness tester. Diffusion coefficient of every element was calculated by using the experimental results. The influence of the interfacial diffusion on the microstructure, Vickers hardness and interfacial bond strength of the VFS coatings was studied in detail. The experimental results show that there is a metallurgical bond area between the VFS WC-Co coatings and the steel substrate. The VFS coatings are characterized by the gradient hardness of the interface and the high bond strength to the steel substate, both of which are beneficial to the improvement of the wear resistance and corrosion resistance.
机译:通过真空熔结烧结(VFS)制成与钢基材紧密结合的WC-Co复合涂层。用电子探针测量某些成分的浓度分布,并用SEM,X射线衍射仪和显微硬度计观察并分析了VFS涂层的微观结构和形貌。利用实验结果计算出每个元素的扩散系数。详细研究了界面扩散对VFS涂层微观结构,维氏硬度和界面结合强度的影响。实验结果表明,VFS WC-Co涂层与钢基材之间存在冶金结合区。 VFS涂层的特征在于界面的梯度硬度和与钢基态的高结合强度,这两者均有利于提高耐磨性和耐腐蚀性。

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