Mechanical properties and grindability of experimental Ti-Au alloys.
Experimental Ti-Au alloys (5, 10, 20 and 40 mass% Au) were made. Mechanical properties and grindability of the castings of the Ti-Au alloys were examined. As the concentration of gold increased to 20%, the yield strength and the tensile strength of the Ti-Au alloys became higher without markedly deteriorating their ductility. This higher strength can be explained by the solid-solution strengthening of the a titanium. The Ti-40%Au alloy became brittle because the intermetallic compound Ti3Au precipitated intensively near the grain boundaries. There was no significant difference in the grinding rate and grinding ratio among all the Ti-Au alloys and the pure titanium at any speed.
Divison of Dental Biomaterials, Graduate School of Dentistry, Tohoku University, Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan. m-tak@mail.tains.tohoku.ac.jp
Masatoshi
M
Takahashi
Masafumi
M
Kikuchi
Osamu
O
Okuno
D000704:Analysis of Variance; D003775:Dental Polishing; D003799:Dental Stress Analysis; D004548:Elasticity; D006047:Gold Alloys; D006244:Hardness; D008422:Materials Testing; D013718:Tensile Strength; D014025:Titanium
D006047:Gold Alloys; D014025:Titanium