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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Microstructure and Wear Resistance of...

Microstructure and Wear Resistance of Cu_0.9NiAlCoCrFe High Entropy Alloy Coating on AZ91D Magnesium Alloys by Laser Cladding

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Abstract:

To improve the wear properties of AZ91D magnesium alloys, a Cu_0.9NiAlCoCrFe high entropy alloy (HEA) coating was fabricated on AZ91D magnesium alloys by laser cladding using prealloyed Cu_0.9NiAlCoCrFe powders. The microstructure of the HEA coating was characterized by OM, SEM and XRD. The wear resistance of the HEA coating was evaluated under dry sliding wear test condition at room temperature. The results show that the HEA coating mainly consists of a simple BCC solid solution phase. The HEA coating exhibits excellent wear resistance. The main wear mechanisms of the HEA coating and the AZ91D substrate were different, the former dominated by oxidative abrasive wear and the latter suffered from both adhesive and abrasive wear.

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Materials Science, Computer and Information Technology

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

246-250

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.246

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Online since:

July 2014

Authors:

Kai Jin Huang*, Yu Yue Wang, Xin Lin

Keywords:

High Entropy Alloy Coating, Laser Cladding, Magnesium Alloy, Wear

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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