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| 牙科低金含量银钯合金在相变温度下的强化机制研究 | |
| 引用本文： | 田保,杨征,孟玉坤,潘小波,彭利辉,钟爱喜,刘光雪,李荣婷. 牙科低金含量银钯合金在相变温度下的强化机制研究[J]. 广西医学, 2011, 33(12): 1547-1550 |
| 作者姓名： | 田保 杨征 孟玉坤 潘小波 彭利辉 钟爱喜 刘光雪 李荣婷 |
| 作者单位： | 1. 四川省医学科学院暨四川省人民医院口腔科,成都市,610072 2. 四川大学华西口腔医学院修复科,成都市,610041 3. 广西壮族自治区人民医院口腔科,南宁市,530021 |
| 基金项目： | 广西科学研究与技术开发计划资助项目(0816004-11) |
| 摘 要： | 目的 探讨牙科低金含量银钯合金在相变温度下的强化机制。方法 经过固溶处理后,合金在400℃分别等温强化处理1min、2min、5min、10min、20min、50min和100min,淬火冷却。采用显微硬度测试,X线衍射,扫描电镜和电子探针了解合金的强化机制。结果 强化处理100min,合金硬度达到最大值,较固溶处理后的硬度提高了105%,处理较长时间后有片状分布的析出相,元素分析为Cu、Pd富集。结论 合金在低于相变温度下的硬度升高与相变所致的内应变高度相关。更多还原 |
| 关 键 词： | 银钯合金 牙科合金 时效强化 显微硬度 |
Research on Hardening Mechanism of Dental Low-content Gold Ag-Pd Alloy under Phase Transformation Temperature |
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| TIAN Bao,YANG Zheng,MENG Yu-kun,PAN Xiao-bo,PENG Li-hui,ZHONG Ai-xi,LIU Guang-xue,LI Rong-ting. Research on Hardening Mechanism of Dental Low-content Gold Ag-Pd Alloy under Phase Transformation Temperature[J]. Guangxi Medical Journal, 2011, 33(12): 1547-1550 | |
| Authors: | TIAN Bao YANG Zheng MENG Yu-kun PAN Xiao-bo PENG Li-hui ZHONG Ai-xi LIU Guang-xue LI Rong-ting |
| Affiliation: | TIAN Bao1,YANG Zheng2,MENG Yu-kun2,PAN Xiao-bo3,PENG Li-hui3,ZHONG Ai-xi3,LIU Guang-xue3,LI Rong-ting3(1 Department of Stomatology,Sichuan Province People Hospital,Chengdu 610072,China,2 West China College of Stomatology,Sichuan University,Chengdu 610044,3 Department of Stomatology,People's Hospital of Guangxi Zhuang Autonomous Region,Nanning 530021,China) |
| Abstract: | Objective To study the hardening mechanism of dental low-content gold Ag-Pd alloy under phase transformation temperature. Methods The alloy was iso-thermally age-hardened at 400℃ for 1 minute,2 minutes,5 minutes,10 minutes,20 minutes, 50 minutes and 100 minutes respectively after solution, and followed by ice-water quench. By means of microhardness, X-ray diffraction, SEM and EPMA,the hardening mechanism was studied. Results The microhardness of the alloy after iso-thermally for 100 rain got the maximum hardness which rised 105% than that of the hardness by solution treated. There was new phase with abundant Cu, Pd. Conclusion The elevatin of hardness is related with inner strain causing by phase transformation. |
| Keywords: | Ag-Pd alloy Dental alloys Ageing strengthening Microhardness |
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