모의소성과정이 Au-Cu-Zn-Cr 합금의 구강내온도에서의 시효경화능에 미치는 영향
The effect of simulated firing cycle on age-hardenability of Au-Cu-Zn alloy containing Cr at intraoral temperature
설효정, 조수연, 이광영, 정지인, 전병욱, 권용훈, 김형일,
소속 상세정보
설효정 ( Seol Hyo-Joung ) - 부산대학교 치의학전문대학원 치과재료학교실
조수연 ( Cho Su-Yoen ) - 부산대학교 치의학전문대학원 치과재료학교실
이광영 ( Lee Gwang-Young ) - 부산대학교 치의학전문대학원 치과재료학교실
정지인 ( Jeong Ji-In ) - 부산대학교 치의학전문대학원 치과재료학교실
전병욱 ( Jeon Byung-Wook ) - 부산대학교 치의학전문대학원 치과재료학교실
권용훈 ( Kwon Yong-Hoon ) - 부산대학교 치의학전문대학원 치과재료학교실
김형일 ( Kim Hyung-Il ) - 부산대학교 치의학전문대학원 치과재료학교실
KMID : 0362220130400010033
Abstract
In the present study, the effect of simulated firing cycle on age-hardenability of Au-Cu-Zn alloy containing Cr at intraoral temperature was evaluated by means of hardness test, X-ray diffraction (XRD) study, scanning electron microscopic (SEM) observation, electron probe micro analysis (EPMA) and differential thermal analysis (DTA) after solution-treatment and then aging at intraoral temperature after simulated firing cycle. The Au-Cu-Zn alloy containing 10-15 at.% Cr was softened during simulated firing, and was hardened during cooling process after simulated firing. The hardening effect during cooling process of the Au-Cu-Zn alloy containing 10-15 at.% Cr after simulated firing cycle decreased apparently by the repetitive firing. The Cr addition up to 15 at.% instead of Cu in AuCu-20Zn (at.%) alloy did not result in appreciable change of the order-disorder transition temperature and solidus temperature. The age-hardenability at intraoral temperature of Au-Cu-Zn alloy containing 10-15 at.% Cr decreased apparently after solution-treatment and then simulated firing and aging at intraoral temperature.
키워드
Age-hardenability at intraoral temperature; simulated firing cycle; multi-purpose; Au-Cu-Zn-Cr
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