Aluminide Coatings Fabricated on Nickel by Aluminium Electrodeposition from DMSO<SUB>2</SUB>-Based Electrolyte and Subsequent Annealing

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  • Aluminide coatings fabricated on nickel by aluminium electrodeposition from DMSO2-based electrolyte and subsequent annealing

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A new cost-effective process to fabricate aluminide coatings was developed. Coating layers consisting of nickel aluminides could be formed by electrodeposition of Al layers from a dimethylsulfone-AlCl3 electrolyte on Ni substrates and subsequent annealing in air or vacuum at temperatures of 700–1150°C. Analysis of the intermetallic layers by XRD, SEM and EDX indicated the formation of Al3Ni and Al3Ni2 at 700°C, AlNi at 900°C and 1000°C, and AlNi and AlNi3 at 1150°C. The Annealing atmosphere did not affect the resulting intermetallic products.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 52 (6), 1216-1221, 2011

    The Japan Institute of Metals and Materials

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