International Journal of Precision Engineering and Manufacturing

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Surface Modification of Aluminum by Nitrogen-Ion Implantation

  • Kang Hyuk-Jin (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Ahn Sung-Hoon (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Lee Jae-Sang (Korea Atomic Energy Research Institute) ;
  • Lee Jae-Hyung (Korea Atomic Energy Research Institute)
  • Published : 2006.01.01
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Abstract

The research on surface modification technology has been advanced to improve the properties of engineering materials. Ion implantation is a novel surface modification technology that enhances the mechanical, chemical and electrical properties of substrate's surface using accelerated ions. In this research, nitrogen ions were implanted into AC7A aluminum substrates which would be used as molds for rubber molding. The composition of nitrogenion implanted aluminum and distribution of nitrogen ions were analyzed by Auger Electron Spectroscopy (AES). To analyze the modified surface, properties such as hardness, friction coefficient, wear resistance, contact angle, and surface roughness were measured. Hardness of ion implanted specimen was higher than that of untreated specimen. Friction coefficient was reduced, and wear resistance was improved. From the experimental results, it can be expected that implantation of nitrogen ions enhances the mechanical properties of aluminum mold.

Keywords

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