Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Enhancement of Hardness and Moderation of Surface Defects of 14K, 18K Yellow Gold Alloy by Heat Treatment

열처리에 의한 14K, 18K yellow gold alloy의 경도 향상 및 표면 결함 완화

  • Ahn, Ji-Hyun (Nano Engineering College of Engineering Hanyang University) ;
  • Seo, Jin-Kyo (Division of Materials Science and Engineering College of Engineering Hanyang University) ;
  • Ahn, Yoeng-Gil (Division of Materials Science and Engineering College of Engineering Hanyang University) ;
  • Park, Jong-Wang (Division of Materials Science and Engineering College of Engineering Hanyang University)
  • 안지현 (한양대학교 나노공학과) ;
  • 서진교 (한양대학교 신소재공학과) ;
  • 안용길 (한양대학교 신소재공학과) ;
  • 박종완 (한양대학교 신소재공학과)
  • Received : 2010.04.09
  • Accepted : 2010.04.26
  • Published : 2010.04.30
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Abstract

In this study, we conducted heat treatment on 14K, 18K yellow gold alloy at various temperature conditions for improving their hardness and moderating their surface defects. Also after the heat treatment we used EPMA (Electron Probe Micro Analyzer), XRF (x-ray Fluorescence spectroscopy) for qualitative analysis and OM (optical microscope), SEM (scanning electron microscope) to investigate the changes of surface grain boundary. We used Vickers hardness tester to verify the changes of hardness. After the heat treatment, 14K, 18K gold alloys showed improved hardness and moderated surface defects at specific temperatures and duration.

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