The Ti-6Al-4V-4B4C composite coatings have been deposited on AISI 1040 steel substrates by magnetron sputtering. The composition, structure, and topography of the coated surface have been explained by SEM, XRD, FT-IR and AFM. The constant coating thicknesses of 80 nm and 115 nm obtained for 0.5 h and 1h coating time, respectively. Wear tests have been conducted on the coated AISI 1040 steel substrates by using ball-on-disc apparatus under 2N and 3N loads at room temperature. The Ti-6Al-4V-4B4C coating has shown an excellent wear rate with a lower coefficient of friction. The nano-hardness and elastic modulus of the AISI 1040 steel coated with Ti-6Al-4V-4B4C has been attained by the AFM nano indentation technique that showed the maximum value of 10.7 GPa and 206.4 GPa, respectively. Ti-6Al-4V-4B4C composite coatings have displayed to lowest wear rates among all loading conditions, hence signifying that it could be a promising alternative to other hard coatings.

中文翻译：

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磁控溅射涂覆Ti-6Al-4V 4B4C的AISI 1040钢的纳米硬度和磨损行为

Ti-6Al-4V-4B4C复合涂层已通过磁控溅射沉积在AISI 1040钢基底上。涂层表面的组成，结构和形貌已通过SEM，XRD，FT-IR和AFM进行了解释。在0.5 h和1 h的涂覆时间内分别获得80 nm和115 nm的恒定涂覆厚度。通过在室温下在2N和3N负载下使用圆盘球设备对经涂覆的AISI 1040钢基底进行了磨损测试。Ti-6Al-4V-4B4C涂层具有出色的磨损率和较低的摩擦系数。通过AFM纳米压痕技术获得了涂有Ti-6Al-4V-4B4C的AISI 1040钢的纳米硬度和弹性模量，该技术分别显示出最大值10.7 GPa和206.4 GPa。