Effect of Electrolysis Condition on Mechanical Property of Ni Electrodeposits

Abstract

Nickel is a commercially important and versatile element in electroplating. The applications of nickel electroplating fall into three main categories: decorative, functional and electroforming. In decorative applications, electroplated nickel is most often applied in combination with electrodeposited chromium. Nickel is deposited on surfaces to improve corrosion and wear resistance or modify magnetic and other properties. Electroforming is electroplating applied to the fabrication of products of various kinds. Nickel is deposited onto a substrate and then removed from it to create a part made entirely of nickel. In this study, mechanical property of Ni electrodeposits in various manufacturing condition such as temperature, current density, pH and electrolyte content, was investigated to understand effect of electrolysis condition on mechanical property. Vickers hardness increased as the temperature and pH increased and current density and electrolyte content decreased and pH increased. The results were explained by cathode overvoltage and hydrogen evolution.

Study on Zn-Mn Alloy Plating on the Surface of Steel Sheet Prepared in Hydrochloric Acid Bath

“…The composition of the plating bath and the electrodeposition potential affect the manganese content, surface morphology and corrosion characteristics of the Zn-Mn alloy. The relationship between the surface morphology of the plated layer and the composition ratio of manganese has been studied [1][2][3][4][5][6][7][8][9][10].…”