In this study, functional performance of Ni/Cr₃C₂ functionally graded claddings (FGCs) was investigated under dry sliding wear environment. The Ni/Cr₃C₂-based FGCs were produced by varying Cr₃C₂ fraction (Ni-XCr₃C₂) (X=10%–30% by weight) using microwave irradiation. The FGC layers were composed of cellular-structure with reinforced particles dispersed randomly inside Ni-based matrix. Variation of Cr₃C₂ particles inside Ni matrix exhibited significant impact on micro-structural and mechanical properties. The microhardness profile of the FGC layers showed an increase in hardness value with an increase in the amount of reinforced Cr₃C₂ particles. FGC top layers showed the maximum value of micro-hardness of 555 ± 34 HV. Functional performance of microwave processed FGCs was studied through the pin-on-disk tribometer under varying sliding velocity and sliding distances. For comprehension study, wear study was also carried out on microwave processed single layer clads with compositions corresponding to FGC layers. The FGC sample showed better wear resistance than all single clad layers and substrate material. The FGC sample exhibited 1.6 times less wear rate than the Ni-based + 30% Cr₃C₂ single layer clad. The worn-out surfaces of FGC and single-layer-clads showed presence of multiples cracks and grooves, which resulted in their weight loss during dry sliding contact. Material debonding and the formation of craters and cracks are the main phenomena responsible for the wear loss in the FGC surface.

在这项研究中，Ni/Cr ₃ C ₂功能梯度包层（FGCs）在干滑动磨损环境下的功能性能进行了研究。Ni/Cr ₃ C ₂基 FGC 是通过使用微波辐射改变 Cr ₃ C ₂分数（Ni-XCr ₃ C ₂）（X=10%–30% 重量）来生产的。FGC 层由蜂窝结构组成，增强颗粒随机分散在镍基基体中。Cr ₃ C _{2 的}变化Ni 基体中的颗粒对微观结构和机械性能有显着影响。FGC 层的显微硬度分布显示硬度值随着增强 Cr ₃ C ₂颗粒量的增加而增加。FGC 顶层的显微硬度最大值为 555 ± 34 HV。通过针盘摩擦计在不同的滑动速度和滑动距离下研究了微波处理的 FGC 的功能性能。为了理解性研究，还对具有对应于 FGC 层的成分的微波处理的单层包层进行了磨损研究。FGC 样品显示出比所有单包层和基材材料更好的耐磨性。FGC 样品的磨损率比 Ni 基 + 30% Cr 低 1.6 倍₃ C ₂单层包覆。FGC 和单层包层的磨损表面显示存在多个裂纹和凹槽，这导致它们在干滑动接触过程中失重。材料脱粘和凹坑和裂纹的形成是导致 FGC 表面磨损损失的主要现象。