Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (43권2호 86-90)

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

안지현;서진교;안용길;박종완;
Ahn, Ji-Hyun;Seo, Jin-Kyo;Ahn, Yoeng-Gil;Park, Jong-Wang;

한양대학교 나노공학과;한양대학교 신소재공학과;
Nano Engineering College of Engineering Hanyang University;Division of Materials Science and Engineering College of Engineering Hanyang University;

DOI : 10.5695/JKISE.2010.43.2.086

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.

Keywords

Gold alloy heat treatment;Gold alloy hardening;