专利名称：Coated article and method and material of
coating
发明人：Irwin I. Bessen申请号：US05/353764申请日：19730423公开号：US03961098A公开日：19760601
摘要：An article is provided with improved resistance to hot corrosion through acoating on a metal surface based on an element selected from Fe, Co and Ni, the coatingcomprising a filled matrix bonded by interdiffusion with the substrate. The matrix isapplied by impinging on the substrate metal surface a plurality of heated metallicparticles, such as by plasma spraying. The coating includes a filler metal of aluminum andpreferably an alloy of aluminum and at least one other element, for example Cr,
deposited on and interdiffused with the matrix, such as through a halide vapor depositionprocess employing a mixture of aluminum powder and other powders. As a result ofapplication of the filler metal, there is provided from the matrix a coating layer of analloy including an average of about 8-20 weight percent aluminum, the applicationprocess resulting in substantial recrystallization of the matrix.
申请人：GENERAL ELECTRIC COMPANY
代理人：Lee H. Sachs,Derek P. Lawrence
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