Novel Al2CoCrFeNi high-entropy alloy coating produced using suspension high velocity air fuel (SHVAF) spraying

Berndt, C C.; Boschen, M; Joshi, S; Ang, A S M; Munroe, P; Singh, S; Anupam, A; Meghwal, A; Björklund, S

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Novel Al2CoCrFeNi high-entropy alloy coating produced using suspension high velocity air fuel (SHVAF) spraying

Meghwal, A; Anupam, A; Boschen, M; Singh, S; Björklund, S; Joshi, S; Munroe, P; Berndt, C C.; Ang, A S M

URI: http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/4438

Date: 2024-05-08

Abstract:

Abstract: Metallic coatings of Al2CoCrFeNi high entropy alloy (HEA) were deposited using the suspension high velocity air fuel spray (SHVAF) process, towards exploring its viability as a bond coat in thermal barrier coatings. The relatively high Al content promoted a BCC + B2 phase-dominated coating structure, leading to enhanced mechanical properties. The oxidized microstructure exhibited a protective Al2O3 layer with characteristics comparable to conventional bond coat alloys.

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