Grindability of Dental Cast Ti-Zr Binary Alloys

被引：0
|
作者：
Takahashi, Masatoshi [1 ]
Kikuchi, Masafumi [1 ]
Okuno, Osamu [1 ]
机构：
[1] Tohoku Univ, Grad Sch Dent, Div Dent Biomat, Sendai, Miyagi 9808575, Japan
来源：
JOURNAL OF THE JAPAN INSTITUTE OF METALS | 2010年 / 74卷 / 06期
关键词：
biomaterial; titanium alloy; grindability; microstructure; dental alloy; MECHANICAL-PROPERTIES; TITANIUM-ZIRCONIUM; PHASE; AG;
D O I：
10.2320/jinstmet.74.351
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The purpose of this study was to improve the grindability of titanium by alloying with zirconium. The grindability of dental cast Ti-Zr binary alloys (10, 20, 30, 40 and 50 mass%Zr) was evaluated using a carborundum wheel. The Ti-Zr alloys up to 30 mass%Zr formed an a structure, and the 40 mass%Zr and 50 mass%Zr alloys formed an alpha' structure. The Ti-40 mass%Zr alloy at up to 1000 m.min(-1) and the Ti-50 mass%Zr alloy at up to 1250 m.min(-1) exhibited significantly higher grindability than titanium. More than twice the volume of metal was removed from the alloys than from titanium per minute. The improved grindability could be attributed to the a' structure in addition to the decrease in elongation. The Ti-Zr alloys, which formed an a' phase structure, are candidates for use as machinable biomaterial in dental applications.
引用
收藏
页码：351 / 355
页数：5
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