In order to improve the friction and wear performance and surface hardness of AISI 1045 steel and expand its application range, this paper carried out the research on friction and wear performance and surface hardness of Zr₆₅Al_7.5Ni₁₀Cu_17.5 crystalline powder (CP) and amorphous powder (AP) after laser cladding on AISI 1045 steel surface. The results show that both CP and amorphous powder (AP) formed a cladding layer on the surface of AISI 1045 steel under laser irradiation. The thickness of the cladding layer is about 400 μm, and the thickness of the AP cladding layer is slightly larger than that of the CP cladding layer. The results show that there are many holes in the AP cladding layer, and holes can be observed at the junction with the matrix; while the CP cladding layer is well combined with the matrix and no holes are observed. The friction performance of CP cladding layer is better than that of AP cladding layer. In the wear marks of the AP cladding layer, there are bonding areas, while the wear marks of the CP cladding layer have a furrow-like morphology, and part of the matrix is exposed. The surface microhardness and average microhardness of AP cladding layer are 49% and 94% higher than that of CP cladding layer, respectively. Hardness modification has obvious advantages. The reasons for porosity, large friction coefficient and low stability of the friction experiment of the AP cladding layer are analyzed and discussed. The ideas and methods for improving the laser irradiation to achieve both high wear resistance and high strength of the AP cladding layer are proposed.

中文翻译：

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Zr-Cu-Ni-Al结晶粉末熔覆层和非晶态复合粉末熔覆层的摩擦磨损性能研究

为了提高AISI 1045钢的摩擦磨损性能和表面硬度并扩大其应用范围，本文对Zr ₆₅ Al _7.5 Ni ₁₀ Cu _17.5的摩擦磨损性能和表面硬度进行了研究。激光熔覆在AISI 1045钢表面上的结晶粉末（CP）和非晶粉末（AP）。结果表明，在激光照射下，CP和非晶态粉末（AP）均在AISI 1045钢的表面上形成了熔覆层。包覆层的厚度为约400μm，并且AP包覆层的厚度略大于CP包覆层的厚度。结果表明，在AP包覆层中有许多孔，并且在与基体的结合处可以观察到孔。而CP包层与基体很好地结合在一起，没有观察到孔。CP包覆层的摩擦性能优于AP包覆层的摩擦性能。在AP覆盖层的磨损痕迹中，有粘结区域，而CP覆盖层的磨损痕迹具有沟状的形态，并且矩阵的一部分被暴露了。AP包覆层的表面显微硬度和平均显微硬度分别比CP包覆层的表面显微硬度和平均显微硬度高49％和94％。硬度改性具有明显的优势。分析并讨论了AP包覆层摩擦实验中孔隙率大，摩擦系数大，稳定性低的原因。提出了改善激光照射以实现AP包覆层的高耐磨性和高强度的思想和方法。分析和讨论了AP包覆层的摩擦系数大，稳定性低的问题。提出了改善激光照射以实现AP包覆层的高耐磨性和高强度的思想和方法。分析和讨论了AP包覆层的摩擦系数大，稳定性低的问题。提出了改善激光照射以实现AP包覆层的高耐磨性和高强度的思想和方法。