MoB/CoCr Coating by Low Pressure Plasma Spraying against Erosion by Molten Al-12.07wt.%Si Alloy

Xiao Chen

doi:10.4028/www.scientific.net/AMR.284-286.676

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 284-286MoB/CoCr Coating by Low Pressure Plasma Spraying...

MoB/CoCr Coating by Low Pressure Plasma Spraying against Erosion by Molten Al-12.07wt.%Si Alloy

Abstract:

MoB/CoCr, a novel material for thermal spraying, with high durability is used to resist erosion by molten Al-12.07wt.%Si alloy. The durability of the MoB/CoCr coating prepared by low pressure plasma spraying (LPPS) has been investigated using a molten-metal immersion tester. The 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, is observed after the immersion test, suggesting that the ternary borides have much higher durability.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

676-679

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.676

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Online since:

July 2011

Authors:

Xiao Chen

Keywords:

Al-12.07Wt.%Si Alloy, Erosion Resistance, MoB/CoCr, Novel Material, Thermal Shock

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