| 热处理对Ni47Ti44Nb9记忆合金相变温度的影响 |
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| 引用本文： | 栗华矗,高宝东,王江波,冯昭伟,米绪军. 热处理对Ni47Ti44Nb9记忆合金相变温度的影响[J]. 稀有金属, 2004, 28(4): 794-796 |
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| 作者姓名： | 栗华矗 高宝东 王江波 冯昭伟 米绪军 |
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| 作者单位： | 北京有色金属研究总院有研亿金新材料股份有限公司,北京,100088 |
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| 摘 要： | 利用差式扫描量热仪(DSC)和扫描电镜研究了不同热处理制度条件下Ni47Ti44Nb9合金相变温度的变化规律和显微组织。结果表明，Ni47Ti44Nb9合金相变温度随冷却速度加快和分级淬火温度的升高呈显著上升趋势。电镜观察表明，随着冷却速度的加快和分级淬火温度的升高，合金共晶组织含量减少，基体Ni／Ti比例降低，相变温度升高。
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| 关 键 词： | 形状记忆合金 Ni47Ti44Nb9 热处理 相变温度 差式扫描量热仪 扫描电镜 |
| 文章编号： | 0258-7076(2004)04-0794-03 |
Effects of Heat Treatment on Transformation Temperature of TiNiNb Shape Memory Alloy |
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| Li Huachu ,Gao Baodong,Wang Jiangbo,Feng Zhaowei,Mi Xujun. Effects of Heat Treatment on Transformation Temperature of TiNiNb Shape Memory Alloy[J]. Chinese Journal of Rare Metals, 2004, 28(4): 794-796 |
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| Authors: | Li Huachu Gao Baodong Wang Jiangbo Feng Zhaowei Mi Xujun |
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| Affiliation: | Li Huachu *,Gao Baodong,Wang Jiangbo,Feng Zhaowei,Mi Xujun |
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| Abstract: | The effects of step quench and cooling rate on the transformation temperature and the microstructure of Ni 47 Ti 44 Nb 9 alloy were investigated by utilizing SEM and DSC. With the increase of cooling rate and step quench temperature, the Ms temperature increases. SEM observations show that the content and grain size of eutectic structure increases with decrease in cooling rate and step quench temperature, which causes a higher Ni/Ti ratio in the matrix and a lower transformation temperature of the alloy. |
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| Keywords: | Ni 47 Ti 44 Nb 9 alloy shape memory alloy heat treatment transformation temperature |
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