Durability of Low Pressure Plasma Sprayed MoB/CoCr Coating on 310S Stainless Steel in Molten Al-12.07wt.%Si Alloy
A sprayed MoB/CoCr cermet coating was formed on 310S stainless steel by low pressure plasma spraying (LPPS), and its durability in the molten Al-12.07wt.%Si has been investigated by SEM、EDS and XRD. The immersion test revealed that the MoB/CoCr coating has much higher durability without dissolution in the molten Al-12.07wt.%Si alloy. Little change of crystal structure, mainly composed of ternary borides of Co2MoB2 and CoMoB, suggesting that the ternary borides have much higher durability.
X. Chen et al., "Durability of Low Pressure Plasma Sprayed MoB/CoCr Coating on 310S Stainless Steel in Molten Al-12.07wt.%Si Alloy", Advanced Materials Research, Vols. 314-316, pp. 187-190, 2011