Wear behaviour of ZE41A magnesium alloy coated with WC/Cu using electrical discharge coating (EDC) has been investigated in this study. The wear test was conducted with pin-on-disc machine using different conditions such as normal load of 1.5 kg, 2.5 kg, 3.5 kg and sliding speed of 100 rpm, 200 rpm, 300 rpm and sliding time of 3 min, 5 min, 7 min through L9 Taguchi orthogonal array to study the effect of sliding parameters on the wear characteristics. A wear transition map was constructed to describe the different wear conditions such as mild wear, severe wear and ultra severe wear. The main wear mechanisms for each wear regime were identified and classified through wear mechanism map. The worn-out specimens were characterized using scanning electron microscope (SEM) to identify the various wear mechanisms.
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The authors wish to offer their heartfelt thanks to the University Grant Commission (UGC), New Delhi for awarding fellowship for doing research through the Award Letter No: F1-17.1/2017-18/RGNF-2017-18-SC-TAM-34647/(SA-III/Website) dated 27/07/2017 (A study on electro-discharge machining of ZE41A magnesium alloy). The authors are also grateful to the Centre for Materials Joining and Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University for providing lab facilities to conduct the experiments.
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Conflict of interest
There is no conflict of interest.
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