AlCoCrFeNi-Based High-Entropy Superalloy Coating Applied onto the Surface of Al-Alloys

ALKAN M., DOKUMACI ALKAN E., Ari G.

154th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2025, Nevada, United States Of America, 23 - 27 March 2025, pp.449-457, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1007/978-3-031-80748-0_40
  • City: Nevada
  • Country: United States Of America
  • Page Numbers: pp.449-457
  • Keywords: SHS-coating, High-entropy alloys, Al-A356 alloy
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this study, the deposition of B2-structured AlCoCrFeNi-based high entropy alloy (HEA) onto A356 aluminum alloy substrate via a self-propagating high-temperature synthesis method was aimed. The mixing of metal oxide powders (Co3O4,Cr2O3,Fe2O3, NiO, and TiO2) with metallic Al powders was used as the raw material. The effects of raw material weights and compositions on the proper ties of the high-entropy alloy layers were investigated. In the study, the reduction efficiencies of metal oxides were also calculated. The Vickers hardness test, scan ning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X ray fluorescence (XRF), and X-ray diffraction (XRD) analyses were performed for characterization of the final products.