2011 Fiscal Year Final Research Report
Unique hardening mechanism of low carat dental precious alloy
| Project/Area Number |
21360332
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Tohoku University |
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Principal Investigator |
NIINOMI Mitsuo 東北大学, 金属材料研究所, 教授 (50126942)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAI Masaaki 東北大学, 金属材料研究所, 准教授 (20431603)
HIEDA Junko 東北大学, 金属材料研究所, 助教 (40566717)
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| Co-Investigator(Renkei-kenkyūsha) |
FUKUI Hisao 愛知学院大学, 歯学部 (50090147)
TSUTSUMI Harumi 東北大学, 金属材料研究所, 助教 (50509023)
AKAHORI Toshikazu 名城大学, 理工学部, 准教授 (00324492)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 歯科用金属 / 銀パラジウム金銅合金 / 熱処理 / ミクロ組織 / 力学的特性 |
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| Research Abstract |
The precipitated β' phase by high-temperature solution treatment strongly contributes to the unique hardening behavior of dental as-solutionized Ag-20Pd-12Au-14. 5Cu alloy. The formation mechanism of the β' phase by high-temperature solution treatment is elucidated. In dental Ag-20Pd-12Au-xCu alloys (x:13, 17, and 20), the fine β' phase is precipitated by high-temperature solution treatment and the unique hardening behavior is exhibited.
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