| 时效处理对TiNiCr形状记忆合金相变的影响 |
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| 引用本文： | 司乃潮,翟玉敬,司松海,赵培根,郑利波. 时效处理对TiNiCr形状记忆合金相变的影响[J]. 稀有金属材料与工程, 2011, 40(12): 2147-2151 |
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| 作者姓名： | 司乃潮 翟玉敬 司松海 赵培根 郑利波 |
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| 作者单位： | 1. 江苏大学,江苏镇江,212013
2. 镇江忆诺唯记忆合金有限公司,江苏镇江,212009 |
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| 基金项目： | 科技部科技型中小企业技术创新基金（09C26213201044）；江苏省科技型中小企业技术创新基金(BC2007144) |
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| 摘 要： | 利用差示扫描量热仪(DSC)、扫描电镜(SEM)和D/max2500PC全自动X射线衍射仪研究了不同时效处理制度下TiNiCr合金相变温度的变化规律.结果表明,该合金随着时效温度增加,逆马氏体相变点As、Af上升,但当时效温度高于700℃时,相变点As、Af降低.该合金在冷却过程中经历了B2→R→B19′两阶段一级相变.通过SEM和XRD衍射研究表明,该合金经时效处理产生了Ti3Ni4析出相诱发了R相变.
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| 关 键 词： | 形状记忆合金 TiNiCr 时效处理 马氏体相变 |
| 收稿时间： | 2010-12-05 |
Effect of Aging Treatment on Transformation Behavior of TiNiCr Shape Memory Alloys |
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| Si Naichao,Zhai Yujing,Si Songhai,Zhao Peigen and Zheng Libo. Effect of Aging Treatment on Transformation Behavior of TiNiCr Shape Memory Alloys[J]. Rare Metal Materials and Engineering, 2011, 40(12): 2147-2151 |
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| Authors: | Si Naichao Zhai Yujing Si Songhai Zhao Peigen Zheng Libo |
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| Affiliation: | Jiangsu University, Zhenjiang 212013, China;Jiangsu University, Zhenjiang 212013, China;Zhenjiang Innov Alloy Co. Limited, Zhenjiang 212009, China;Jiangsu University, Zhenjiang 212013, China;Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | Transformation behavior of TiNiCr shape memory alloys with different aging treatment was investigated by DSC,scanning electron microscopy (SEM) and the D/max2500PC automatic X-ray diffraction equipment (XRD).The results indicate that with increasing of the aging temperature,the transformation temperature As and Af increase but they decrease after 700℃ and TiNiCr alloy exhibits B2→R→B19’ two-stage martensitic transformation during cooling.Lots of Ti3Ni4 precipitants from aging treatment induce R phase transformation. |
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| Keywords: | shape memory alloy TiNiCr aging treatment martensitic transformation |
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