Abstract
The paper analyses the effect of oxides powder deposition by plasma spraying and remelting with laser beam on the cavitation resistance of Ti-6Al-4V biphasic alloy. The deposited and remelted coatings were tested for cavitation erosion on the magnetostrictive vibratory apparatus with nickel tube. Using optical and scanning electron microscopy, were obtained qualitative informations about the degradation mechanism and the cavitation erosion evaluation was done by comparing the specific erosion curves of Ti-6Al-4V substrate with those of coated layers.
Keywords: Ti-6Al-4V; cavitation; characteristic curves; oxide ceramic powders