Structure and properties of aluminum coatings obtained by the cold gas-dynamic spraying method

Autor: A. P. Alkhimov, L. I. Tushinsky, N. S. Mochalina, V. F. Kosarev, A. V. Plokhov
Rok vydání: 2006
Předmět:
Zdroj: Thermophysics and Aeromechanics. 13:125-129
ISSN: 1531-8699
0869-8643
DOI: 10.1134/s153186990601014x
Popis: Structure and properties of aluminum coatings deposited onto steel substrates by the cold gas-dynamic spraying (CGS) method were examined. Aluminum CGS coatings fundamentally differ from their thermal counterparts as they enable the formation of heavy-duty layers of metal particles on substrates at temperatures below 500 K. A dense, low-porosity coating is found to form, tightly bound to the base metal. The adhesion strength is shown to weakly depend on the thickness of the sprayed coating due to the compressive stress present in the surface layer. A qualitative model for the coating formation process is proposed.
Databáze: OpenAIRE
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