Corrosion Behavior of Ti-Ag Alloys Used in Dentistry in Lactic Acid Solution

被引：19
|
作者：
Takahashi, Masatoshi [1 ]
Kikuchi, Masafumi [1 ]
Takada, Yukyo [1 ]
机构：
[1] Tohoku Univ, Grad Sch Dent, Div Dent Biomat, Aoba Ku, Sendai, Miyagi 9808575, Japan
来源：
METALS AND MATERIALS INTERNATIONAL | 2011年 / 17卷 / 01期
关键词：
biomaterials; casting; corrosion; scanning electron microscopy (SEM); dental alloy; CU ALLOYS;
D O I：
10.1007/s12540-011-0224-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this study was to evaluate the corrosion resistance of experimental Ti-Ag alloys used as dental materials. An elution test and a rest-potential measurement of alloys with 5-30 mass.% Ag were performed in a 1 % lactic acid solution. The amount of Ti ions released from the alpha phase of the Ti-Ag alloys decreased as the Ag concentration increased. TiAg present in the alloys dissolved preferentially, but Ti(2)Ag did not. The rest potentials of the Ti-Ag alloys were significantly higher than that of pure titanium. The elution test and the rest-potential measurement revealed that the Ti-Ag alloys, which formed a single alpha-titanium structure or contained a titanium and Ti(2)Ag, had excellent corrosion resistance that was comparable or superior to that of pure titanium.
引用
收藏
页码：175 / 179
页数：5
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