Nickel fluoride as a surface activation agent for electroless nickel coating of anodized AA1050 aluminum alloy

SURFACE & COATINGS TECHNOLOGY

卷:364

Article; Proceedings Paper

Kocabas, M.^1,2,3  Ornek, C.⁴  Curioni, M.⁵  Cansever, N.³ 

[1] Konya Tech Univ, Fac Engn & Nat Sci, Dept Met & Mat Engn, TR-42075 Konya, Turkey

[2] Selcuk Univ, Fac Engn, Dept Met & Mat Engn, TR-42075 Konya, Turkey

[3] Yildiz Tech Univ, Fac Chem Met, Met & Mat Engn Dept, TR-34210 Istanbul, Turkey

[4] KTH Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Div Surface & Corros Sci, Drottning Kristinas Vag 51, S-10044 Stockholm, Sweden

[5] Univ Manchester, Sch Mat, Corros & Protect Ctr, Manchester M13 9PL, Lancs, England

关键词: Nickel fluoride tetrahydrate (NiF2 center dot 4H(2)O);    Aluminum alloy;    Anodizing;    Electroless nickel-phosphorus coating (Ni-P);    Surface activation;    Scratch test;   

DOI  :  10.1016/j.surfcoat.2019.03.003

来源: Elsevier

【 摘 要 】

In this study, the use of nickel fluoride tetrahydrate (NiF2 center dot 4H(2)O) as a surface activator and sealant at the same time for the coating of electroless nickel-phosphorus (Ni-P) on anodized aluminum alloy AA1050 is proposed. The usage of the activator resulted in more efficient deposition of Ni-P, improved adhesion properties, and increased wear and friction behavior as opposed to non-activated conditions. Scanning electron microscopy (SEM) and confocal laser microscopy (CLM) analyses of ultramicrotome-cut cross sections of Ni-P coated specimens, surface-activated by NiF2 center dot 4H(2)O, revealed a more well-structured metal-coating interface as opposed to non-activated conditions.

【 授权许可】

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