|
|||||
|
|
Fretting fatigue life evaluation of multilayer Cr–CrN-coated Al7075-T6 with higher adhesion strength—fuzzy logic approach |
|
| Authors: | E Zalnezhad Ahmed A D Sarhan M Hamdi |
| Affiliation: | 1. Center of Advanced Manufacturing and Material Processing, Department of Engineering Design and Manufacture, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia 3. Faculty of Engineering, Islamic Azad University, Chalous Branch, Iran 2. Department of Mechanical Engineering, Faculty of Engineering, Assiut University, Assiut, 71516, Egypt |
| Abstract: | In this research work, an experimental evaluation was conducted to explore the fretting fatigue life of multilayer Cr–CrN-coated AL7075-T6 alloy specimens with higher adhesion strength to substrate as the coating adhesion strength is one of the most critical issues in magnetron sputtering technique. Physical vapor deposition (PVD) magnetron sputtering technique was used for coating purpose, and a fuzzy rule-based system was established to investigate how to achieve higher adhesion of Cr–CrN coating on AL7075-T6 with respect to changes in input process parameters, direct current power, nitrogen flow rate, and temperature. Close assent was obtained between the experimental results and fuzzy model predicted values. Experimental result analysis was performed with Pareto–ANOVA variance as an alternative analysis. The fretting fatigue lives of coated AL7075-T6 alloy were improved 70 % and 22 % at high and low cyclic fatigue, respectively, compared with uncoated specimens. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |
