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Effect of Electrolysis Condition on Mechanical Property of Ni Electrodeposits

니켈 도금층의 기계적 성질에 미치는 전해조건의 영향

  • Kang, Soo Young (Dept. of Metallurgical & Material Engineering, Inha Technical College) ;
  • Lee, Jeong Ja (School of materials Science and engineering, Inha University) ;
  • Yang, Seung Gi (School of materials Science and engineering, Inha University) ;
  • Hwang, Woon Suk (School of materials Science and engineering, Inha University)
  • 강수영 (인하공업전문대학 금속재료과) ;
  • 이정자 (인하대학교 신소재공학부) ;
  • 양승기 (인하대학교 신소재공학부) ;
  • 황운석 (인하대학교 신소재공학부)
  • Received : 2015.03.13
  • Accepted : 2015.04.28
  • Published : 2015.04.30

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.

Keywords

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