Surface Crystallinity Control And Electrochemical Evaluation Of Electroless Nickel Alloy Deposition

Zainal Abidin, Muhammad Zaimi and Noda, Kazuhiko (2012) Surface Crystallinity Control And Electrochemical Evaluation Of Electroless Nickel Alloy Deposition. Journal Of Functional Graded Materials, 26. pp. 66-71. ISSN 2188-3807

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Abstract

Electroless nickel alloy deposition on steel substrates is done at various plating bath pHs and compositions.The increase in plating bath pH increased the nickel alloy deposition rate but decreased the phosphorous,zinc and copper content in nickel alloy film.The accretion of phosphorous content in Ni-P alloys showed a wide passive area in the anodic polarization measurement in a 3.5 wt% NaCl solution.The copper addition also produced Ni-Cu-P deposits with a wide passive area during high phosphorous content as well as corrosion resistance.However,the Zn addition in Ni-Zn-P and Ni-Zn-Cu-P alloys showed no passive area thus having lower corrosion resistance in 3.5 wt% NaCl solution.Plating bath pH has a significant effect on the compositions,surface crystallinity and corrosion behavior of Ni alloys in neutral solutions.

Item Type:	Article
Subjects:	T Technology > T Technology (General) T Technology > TP Chemical technology
Divisions:	Faculty of Manufacturing Engineering > Department of Engineering Materials
Depositing User:	Mohd. Nazir Taib
Date Deposited:	08 Nov 2018 04:04
Last Modified:	08 Nov 2018 04:04
URI:	http://eprints.utem.edu.my/id/eprint/21268
Statistic Details:	View Download Statistic

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