Abstract

The influence of boron on the structure and on the mechanical and tribological properties of protective coatings of the Cr–Al–Ti–N alloys obtained by magnetron sputtering in a closed unbalanced magnetic field using segmented planar ceramic SHS targets has been studied. The obtained coatings were examined using glow discharge optical emission spectroscopy, scanning electronic microscopy, X-ray diffraction phase analysis, nanoindentation, and tribological tests according to the pin-on-disk scheme. It has been shown that the introduction of B results in the suppression of the columnar structure and the reduction of the roughness of the coatings. Hardness, elasticity modulus, elastic recovery, wear resistance, and the coefficient of friction of coatings of the Cr–Al–Ti–B–N alloys have been determined. The introduction of 2.3 at % B leads to a high hardness (H = 15 GPa), stable friction coefficient (f = 0.65), and a decrease of the reduced wear (Vw = 7.5 × 10^–6 mm³/(N m)). It has been shown that the hard Cr–Al–Ti–B–N coatings of the optimal composition in their mechanical and tribological properties exceed the coatings without boron addition.

中文翻译：

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硼添加对使用CFUBMS系统获得的Cr-Al-Ti-N涂层的结构和性能的影响

摘要

研究了硼对分段磁控平面陶瓷SHS靶在封闭不平衡磁场中通过磁控溅射获得的Cr-Al-Ti-N合金保护涂层的结构以及力学和摩擦学性能的影响。根据销钉盘方案，使用辉光放电光发射光谱法，扫描电子显微镜，X射线衍射相分析，纳米压痕和摩擦学测试检查获得的涂层。已经表明，B的引入导致圆柱状结构的抑制和涂层粗糙度的降低。确定了Cr-Al-Ti-B-N合金的硬度，弹性模量，弹性回复率，耐磨性和涂层的摩擦系数。2.介绍H = 15 GPa），稳定的摩擦系数（f = 0.65）和减少的磨损减少（Vw = 7.5×10 ^–6 mm ³ /（N m））。结果表明，具有最佳组成的Cr-Al-Ti-B-N硬涂层的机械和摩擦学性能超过了不添加硼的涂层。