A fuzzy logic predictive model for better surface roughness of Ti-TiN coating on AL7075-T6 alloy for longer fretting fatigue life

作者：Zalnezhad E; Sarhan Ahmed A D^*

来源：Measurement, 2014, 49: 256-265.

DOI：10.1016/j.measurement.2013.11.042

• AL7075-T6 alloy
• Ti-TiN coating
• PVD magnetron sputtering
• Surface roughness
• Fuzzy logic
• Fretting fatigue

In this study, the fretting fatigue resistance of AL7075-T6 alloy is investigated using surface treatment Ti-TiN multilayer coating by physical vapor deposition (PVD) magnetron sputtering technique. A fuzzy logic model was established to forecast the surface roughness of Ti-TiN coating on AL7075-T6 with respect to changes in the input process parameters of DC power, temperature, DC bias voltage, and nitrogen flow rate. The results indicate an agreement between the fuzzy model and experimental results with 95.349% accuracy. The fretting fatigue lives of Ti-TiN-coated specimens with the lowest surface roughness resulting from fuzzy logic were enhanced by 18% at low cyclic fatigue, while at high cyclic fatigue the result was reversed.

• 出版日期2014-3