| Abstract |
| The plasma spray technique has been known as one of the surface modification methods to improve the mechanical properties or the functional characteristics of materials. This paper has aimed to investigate the effects of spray conditions, such as spray distance and arc power level, on the sliding wear properties of plasma sprayed Al_2O_3-40%TiO_2 coating layer. The sliding wear test using pin-on-disc type machine, has been conducted at several sliding speeds for the Al_2O_3-40%TiO_2 coating layer. The sliding wear test using pin-on-disc type machine, has been conducted at several sliding speeds for the Al_2O_3-40%TiO_2 layer coated on mild steel under different sprayed conditions. It is observed that the wear resistance of the plasma sprayed Al_2O_3-40%TiO_2 coating layer is changed with the spray distance and the arc power level. The wear resistance could be improved by decreasing the spray distance and by increasing the arc power level. |
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| Key Words |
| Plasma spray, Al2O3-40%TiO2, Sliding wear characteristics, Spray distance, Arc power level, Residual stress |
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