Tribology of Plasma Sprayed Al2O3-13%TiO2 on AZ91D Magnesium Alloy

Sheng Lu; Zhi Ping Weng; Jing Chen; Li Fu

doi:10.4028/www.scientific.net/AMR.189-193.1312

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Process, Microstructure and Properties of Plasma-Sprayed Ceramic Coating on AZ91D Magnesium Alloy
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Tribology of Plasma Sprayed Al2O3-13%TiO2 on AZ91D...

Tribology of Plasma Sprayed Al₂O₃-13%TiO₂ on AZ91D Magnesium Alloy

Abstract:

The microstructure and properties of plasma sprayed Al₂O₃-13wt%TiO₂ (AT13) coating on AZ91D magnesium substrate were investigated. The results indicated that the AT13 coatings consisted of γ-Al₂O₃, α-Al₂O₃ and Al₂TiO₅, presented a lamellar structure with pores and microcracks. The microhardness increased from the substrate to the coating, significantly conformed to Normal and Weibull distributions. The friction coefficient of AT13 coating increases with the increase of time, load and rotation speed under lower working condition (10N, 20N;100r/min,150r/min), but abnormal phenomenon appeared under high load and rotational speed.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

1312-1315

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.1312

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Online since:

February 2011

Authors:

Sheng Lu, Zhi Ping Weng, Jing Chen, Li Fu

Keywords:

AT13, Magnesium Alloy, Plasma Spraying, Tribology

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