Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Mechanical Properties and Grindability of Experimental Ti-Au Alloys
Masatoshi TAKAHASHIMasafumi KIKUCHIOsamu OKUNO
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2004 年 23 巻 2 号 p. 203-210

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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 α 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.
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© The Japanese Society for Dental Materials and Devices
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