ZrN 코팅된 치과 주조용 Co?Cr 합금의 부식거동
Corrosion Behaviors of ZrN Coated on Dental Co-Cr Alloys
이상훈, 나정숙, 장재영,
소속 상세정보
이상훈 ( Lee Sang-Hun ) - e-디온 치과기공소
나정숙 ( Nah Jung-Sook ) - 진주보건대학 치기공과
장재영 ( Jang Jae-Young ) - 김천대학교 치기공과
KMID : 0362120130350040341
Abstract
Purpose: The purpose of this study was to investigate to effect of the ZrN coated on corrosion resistance and physical property of dental Co-Cr alloys using various instruments.
Methods: The specimens were used, respectively, for experiment, Arc Ion plating was carried out for dental casting alloys using ZrN coated materials with nitrogen gas. ZrN coated surface of each specimen was observed with field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS), vickers hardness tester, and electrochemical tester.
Results: The current density of ZrN coated specimen was smaller than that of non-coated specimen in 0.9% NaCl solution. Pit nucleated at scratch of specimen. The pitting corrosion resistant Emax- Erep increased in order of ZrN coated (110 mV), and non-coated wire (100 mV).
Conclusion: The corrosion potential of the ZrN coated specimen was comparatively high. the surface of ZrN coated specimen was more smooth than that of other kinds of non-coated specimen. ZrN coated surface showed higher hardness than that of non-coated surface.
키워드
corrosion resistance; electrochemical; ZrN coating
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