The role of Ni-Ti-(Cu) interlayers on the mechanical properties and nano-scratch behaviour of solid lubricant W-S-C coatings
The role of Ni-Ti-(Cu) interlayers on the mechanical properties and nano-scratch behaviour of solid lubricant W-S-C coatings
复制标题
Ni-Ti-(Cu)中间层对固体润滑W-S-C涂层力学性能和纳米划痕行为的影响
DOI：
10.1016/j.surfcoat.2014.06.028
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发表时间：
2014
影响因子：
5.4
通讯作者：
Callisti M
中科院分区：
文献类型：
--
作者：
Callisti M
采用磁控溅射法制备了具有不同Ni-Ti-（Cu）中间层的W-S-C自润滑涂层。该方法包括沉积不同Cu含量的Ni-Ti-（Cu）层并退火，然后沉积过渡金属二硫属化物W-S-C涂层，涂层通过梯度Cr基薄层与Ni-Ti-（Cu）层结合。在Ni-Ti中间层中掺杂Cu后，合金的显微组织发生了明显的变化，从而影响合金的力学性能，如H/Er比和抗塑性变形能力。W-S-C/Ni-Ti-（Cu）双层涂层对压痕的响应受中间层材料的影响。Ni-Ti-（Cu）中间层的加入提高了W-S-C涂层的抗粘附损伤能力。发现具有较低H/Er比的中间层显示出提高功能顶层的粘附力的改进的能力。
A self-lubricant W–S–C coating with different Ni–Ti–(Cu) interlayers was fabricated by magnetron sputtering following a three-step process. It consisted of deposition and annealing of Ni–Ti–(Cu) layers with different Cu contents and subsequent deposition of the transition metal dichalcogenide W–S–C coating bonded to the Ni–Ti–(Cu) layer through a gradient Cr-based thin layer. Doping the Ni–Ti interlayer with Cu led to significant microstructural changes which influenced mechanical properties, such as the H/Erratio and the resistance against plastic deformation. The response of the bilayers, i.e. W–S–C/Ni–Ti–(Cu) coatings, to indentation was affected by the interlayer material. The resistance to adhesion damage of the W–S–C coating was improved by using Ni–Ti–(Cu) interlayers. It was found that interlayers with lower H/Erratio showed an improved capability to increase the adhesion of the functional top layer.