| Project/Area Number |
24760581
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Meijo University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | 歯科用貴金属材料 / 固溶化処理 / ミクロ組織 / 機械的強度 / 耐食性 / 歯科用銀合金 / 力学的特性 / 強化機構 |
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| Research Abstract |
The purpose is to investigate the effect of microstructure on the mechanical strength of Ag-20Pd-14.5Cu-12Au fabricated by hot rolling process (AS material) and liquid rapid solidification (LRS) process (LRS material). The following results were obtained.
The microstructure of LRS material becomes single alpha phase through solution treatment (ST). The hardness of LRS material and LRS material subjected to ST are relatively smaller than those of AS material and AS material subjected to the same treatment. From this results, the effect of solid solution hardening of alpha, alpha 1, and alpha 2 phases, which are constitutional phases of Ag-20Pd-14.5Cu-12Au, is lower than that of precipitation hardening of beta' phases. The unique hardening of Ag-20Pd-14.5Cu-12Au, therefore, it seems to occur because the precipitation of beta' phases are enhanced during ST.
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