Insights into the Tribological Characteristic of Cu-Based Coatings Under Extreme Contact Conditions
Insights into the Tribological Characteristic of Cu-Based Coatings Under Extreme Contact Conditions
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深入了解极端接触条件下铜基涂层的摩擦学特性
DOI：
10.1007/s11837-020-04087-7
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发表时间：
2020
期刊：
影响因子：
2.6
通讯作者：
A. Frye
中科院分区：
文献类型：
--
作者：
P. Stoyanov;K. Harrington;A. Frye
研究固体润滑剂对铜基热喷涂涂层摩擦磨损性能的影响。最终目标是确定这些体系的摩擦系数行为，以及建立对界面过程的理解。采用带无涂层销钉的平板装置对铜基热喷涂系统在固体润滑剂二硫化钼(MoS2)和不含二硫化钼(MoS2)的条件下进行了对比试验。结果表明，添加铜铝后的摩擦系数与未涂覆时的摩擦系数相近。与使用MoS2润滑剂的系统相比，无润滑系统(即涂覆和未涂覆铜铝的系统)的摩擦值更高。还进行了重新使用MoS2润滑剂的附加测试，总体上显示出最低的稳态摩擦。不同构型的磨损行为与摩擦系数观测结果具有很好的相关性。此外，利用聚焦离子束/扫描电子显微镜进行了非原位截面分析，捕捉到了第三体现象，并解释了摩擦磨损行为的差异。
The purpose of this study was to investigate the influence of solid lubricants on the friction and wear behavior of Cu-based thermal-sprayed coatings. The ultimate goal was to identify the friction coefficient behavior of these systems as well as establish an understanding of the interfacial processes. Experiments were conducted using a flat-on-flat apparatus with uncoated pins against Cu-based thermal-sprayed systems with and without molybdenum disulfide (MoS 2 ) as the solid lubricant. The results showed that the coefficient of friction for the samples with Cu-Al was similar to that of the uncoated system. The unlubricated systems (i.e., Cu-Al coated and uncoated) showed higher friction values compared with the one with the MoS 2 lubricant. Additional testing with re-application of the MoS 2 lubricant was also performed and overall showed the lowest steady-state friction. The wear behavior of the different configurations correlated well with the friction coefficient observations. In addition, ex situ cross-sectional analysis by means of focused ion beam/scanning electron microscopy was performed to capture the third body phenomena and explain the difference in the friction and wear behavior.
影响因子：
3.2
作者：
Stoyanov, Pantcho;Romero, Pedro A.;Moseler, Michael
通讯作者：
Moseler, Michael
影响因子：
9.5
作者：
Stoyanov, Pantcho;Stemmer, Priska;Dienwiebel, Martin
通讯作者：
Dienwiebel, Martin