Improvement of the mechanical and the tribological properties of CrNbTiMoZr coatings through the incorporation of carbon and the adjustment of the substrate bias voltage
Improvement of the mechanical and the tribological properties of CrNbTiMoZr coatings through the incorporation of carbon and the adjustment of the substrate bias voltage
复制标题
通过掺入碳和调整基体偏压来改善 CrNbTiMoZr 涂层的机械和摩擦学性能
DOI：
10.1016/j.surfcoat.2021.127064
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发表时间：
2021-03
影响因子：
5.4
通讯作者：
Zhou Zhiming
中科院分区：
文献类型：
--
作者：
Kuang Shaofu;Wang Junjun;Wang Linqing;Huang Weijiu;Zhou Zhiming
高熵合金（HEA）涂层具有高硬度和高强度的特点，受到了广泛的关注。HEA涂层的摩擦学性能的改善，如低摩擦系数和磨损率，是一个长期的挑战，是广泛应用的HEA涂层的关键。本研究采用直流磁控溅射技术，通过调节衬底偏压，制备了一系列CrNbTiMoZr涂层。在HEA碳化物涂层中观察到从非晶相到面心立方相的结构的连续转变。残余应力和硬度随衬底偏压的增加而单调增加。碳的加入降低了HEA涂层的摩擦系数和磨损率。因此，我们在-200 V下获得了HEA碳化物涂层，同时具有高硬度（17.4 GPa）、低摩擦系数（0.3-0.4）和低磨损率（1.18 × 10 - 6 mm 3·N-1·m-1）。该研究为设计高强度、低磨损的新型HEA涂层提供了新的指导。
High-entropy alloy (HEA) coatings exhibit high hardness and high strength and have attracted wide attention. The improvement in the tribological performance, such as low friction coefficient and wear rate, is a longstanding challenge and is critical in the broad application of HEA coatings. In this study, a series of CrNbTiMoZr coatings was synthesized using the direct current magnetron sputtering by tuning substrate bias voltages. A continuous transformation in the structure from the amorphous phase to the face-centered cubic phase was observed in HEA carbide coatings. The residual stress and the hardness monotonously increased with the substrate bias voltage. The addition of carbon reduced the friction coefficient and the wear rate of HEA coatings. Consequently, we achieved a HEA carbide coating at −200 V combined with high hardness (17.4 GPa), low friction coefficient (0.3–0.4), and low wear rate (1.18 × 10−6mm3·N−1·m−1). This study provides a new guidance for designing new HEA coatings with high strength and low wear.
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影响因子：
4.1
作者：
Sam Zhang;Deen Sun;Y. Fu;H. Du;Qing Zhang
通讯作者：
Sam Zhang;Deen Sun;Y. Fu;H. Du;Qing Zhang
影响因子：
4.6
作者：
Yu-Siang Jhong;Chih-Wei Huang;Su-Jien Lin
通讯作者：
Yu-Siang Jhong;Chih-Wei Huang;Su-Jien Lin
影响因子：
5.4
作者：
Bachani, Sameer Kamrudin;Wang, Chaur-Jeng;Lee, Jyh-Wei
通讯作者：
Lee, Jyh-Wei
影响因子：
5
作者：
Leyland, A;Matthews, A
通讯作者：
Matthews, A
影响因子：
5.4
作者：
Lo, Wei-Li;Hsu, Sheng-Yu;Duh, Jenq-Gong
通讯作者：
Duh, Jenq-Gong