Electrochemical behavior of electroless ternary nickel (Ni-W-P) alloy deposit on iron substrate in 3.5WT % NaCI solution

Baharom, Syazwani (2014) Electrochemical behavior of electroless ternary nickel (Ni-W-P) alloy deposit on iron substrate in 3.5WT % NaCI solution. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 Pages) ELECTROCHEMICAL BEHAVIOUR OF ELECTROLESS TERNARY NICKEL (Ni-W-P) ALLOY DEPOSIT ON IRON SUBSTRATE IN 3.5wt% NaCl SOLUTION 24PAGES.pdf - Submitted Version Download (400kB)
	Text (Full Text) Electrochemical behaviour of electroless ternary nickel (Ni-W-P) ALLOY deposit on iron substrate in 3.5wt% NaCl solution.pdf - Submitted Version Restricted to Repository staff only Download (2MB)

Abstract

Engineering applications for electroless nickel can be found in virtually in every industry. Interest in electroless plating of nickel-based ternary alloys has increased because their excellent corrosion, wear, thermal and electrical resistance, as well as the ability to plate non-conductive surfaces makes this a coating of choice for many engineering applications. In this investigation, the effect of tungsten (W) in an alkaline electroless nickel baths that has been studied in depositing Ni-W-P alloys on Fe substrate. A decrease in phosphorus (P) content and a marginal increase in grain size have been observed due to the tungsten addition in the Ni-P deposit. Therefore, a marginal improvement in corrosion resistance has been observed in ternary alloy. In order to characterize the deposits, several analysis are will be carried out which are surface morphology by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-Dispersive X-Ray Analysis (EDX) and Optical Microscope (OM) techniques are used, Electrochemical Measurement (ECM) and hardness test.

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