材料科学
摩擦学
摩擦学
纹理(宇宙学)
冶金
超声波传感器
复合材料
干摩擦
基质(水族馆)
物理
声学
人工智能
计算机科学
图像(数学)
海洋学
地质学
作者
Jiaxing Wu,Jianxin Deng,Yang Lu,Zhihui Zhang,Ying Meng,Ran Wang,Qinghao Sun
标识
DOI:10.1016/j.jmapro.2022.10.063
摘要
Linear textures and cross textures with different processing stepovers were fabricated on the surface of GCr15 steel by ultrasonic surface rolling processing (USRP). The effects of texture shape and processing stepover on the dry friction and wear performance of the samples were investigated using a ball-and-disk friction tribometer. The results showed that all the USRP texturing samples had lower friction coefficients and wear rates than those of the substrate sample under dry friction conditions. The best tribological performance was achieved at the stepover of 150 μm for linear textures and 250 μm for cross textures. For two shapes of textures with the same stepover, the linear texture had better wear resistance and the cross texture had better friction reduction. The texture shape and processing stepover influenced the texture height and the strengthening effect, which in turn affected the tribological properties of the samples. The improvement in friction and wear performance by ultrasonic rolling texturing was attributed to the synergistic effect of the strengthened substrate, reduced actual contact area, and entrapment of wear debris.
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