Abstract A novel process called continual local induction cladding (CLIC) was proposed to clad NiCrBSi alloy coatings on AISI 1045 steel substrate with the scanning speed of 0.5, 1.0 and 1.5 mm/s, respectively. The cladding temperature, microstructure, microhardness and wear resistance of the NiCrBSi coatings were characterized by infrared thermal imager, X-ray diffraction (XRD), electron microprobe analysis (EMPA), energy dispersive spectrometer (EDS), micro-sclerometer and pin-on-disk friction tests. The shifted and broadened peak of XRD patterns is mainly influenced by the lattice distortion based on Voigt method, which is due to the formation of substitutional solid solution. The varied peak intensity suggests that the preferred orientation of (200) becomes more obvious as the scanning speed increases. The columnar crystal could not observed in the microstructure of CLIC coatings presumedly due to electromagnetic stirring. Cr23C6 is firstly deposited in the coating and may be redissolved in high temperature.The microhardness is varied from 355 to 681 H V and the wear resistance of cladding coatings is about 6 to 10 times higher than that of substrate.

中文翻译：

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连续局部感应熔覆NiCrBSi涂层的显微组织演变和磨损性能

摘要 提出了一种称为连续局部感应熔覆（CLIC）的新工艺，以0.5、1.0和1.5 mm/s的扫描速度在AISI 1045钢基体上熔覆NiCrBSi合金涂层。采用红外热像仪、X射线衍射仪（XRD）、电子探针分析仪（EMPA）、能谱仪（EDS）、显微硬度计和针式对NiCrBSi涂层的熔覆温度、显微组织、显微硬度和耐磨性进行表征。 -磁盘摩擦测试。XRD图谱的位移和加宽峰主要受基于Voigt方法的晶格畸变的影响，这是由于置换固溶体的形成。变化的峰强度表明，随着扫描速度的增加，（200）的优先取向变得更加明显。据推测，由于电磁搅拌，在 CLIC 涂层的微观结构中无法观察到柱状晶体。Cr23C6首先沉积在涂层中，在高温下可能会重新溶解。显微硬度在355～681 H V之间变化，熔覆涂层的耐磨性比基体高约6～10倍。