| EFFECT OF HEAT TREATMENTS ON THE MICROSTRUCTURE AND TRANSFORMATION CHARACTERISTICS OF TiNiPd SHAPE MEMORY ALLOY THIN FILMS |
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| 作者姓名： | C.C. Zhang C.S. Yang G.F. Ding S. Q. Qian J.S. Wu |
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| 作者单位： | [1]National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro and Nano Science and Technology, Shanghai Jiaotong University, Shanghai 200030, China [2]School of Material Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| 基金项目： | Acknowledgements--This work was supported by Science ＆ Technology Commission of Shanghai Municipality （STCSM）, China （No. 02DJ14042）, and the Key Project of Chinese Ministry of Education （No. 0307）. |
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| 摘 要： | Microstructure and phase transformation behaviors of the film annealed at different temperatures were studied by X-ray diffractometry （XRD）, transmission electron microscopy and differential scanning calorimeter （DSC）. Also tensile tests were examined. For increasing annealed temperature, multiple phase transformations, transformations via a B19-phase or direct martensite/austenite transformtion are observed. The TiNiPd thin film annealed at 750℃ had relatively uniform martensite/austenite transformtion and shape memory effect. Martensite/austenite transformtion was also found in strain-temperature curves. Subsequent annealing at 450℃ had minor effect on transformation temperatures of Ti-Ni-Pd thin films but resulted in more uniform transformation and improved shape memory effect.
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| 关 键 词： | Ti-Ni-Pd薄膜 钛合金 形状记忆合金 显微结构 转变特征 热处理 |
| 收稿时间： | 2005-02-09 |
| 修稿时间： | 2005-06-16 |
EFFECT OF HEAT TREATMENTS ON THE MICROSTRUCTURE AND TRANSFORMATION CHARACTERISTICS OF TiNiPd SHAPE MEMORY ALLOY THIN FILMS |
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| C.C. Zhang C.S. Yang G.F. Ding S. Q. Qian J.S. Wu.EFFECT OF HEAT TREATMENTS ON THE MICROSTRUCTURE AND TRANSFORMATION CHARACTERISTICS OF TiNiPd SHAPE MEMORY ALLOY THIN FILMS[J].Acta Metallurgica Sinica(English Letters),2005,18(6):707-713. |
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| Authors: | CC Zhang CS Yang GF Ding SQ Qian JS Wu |
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| Affiliation: | 1. National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro and Nano Science and Technology, Shanghai Jiaotong University, Shanghai 200030, China
2. School of Material Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | Microstructure and phase transformation behaviors of the film annealed at different temperatures were studied by X-ray diffractometry (XRD), transmission electron microscopy and differential scanning calorimeter (DSC). Also tensile tests were examined. For increasing annealed temperature, multiple phase transformations, transformations via a B19-phase or direct martensite/austenite transformtion are observed. The TiNiPd thin film annealed at 750℃ had relatively uniform martensite/austenite transformtion and shape memory effect. Martensite/austenite transformtion was also found in strain-temperature curves. Subsequent annealing at 450℃ had minor effect on transformation temperatures of Ti-Ni-Pd thin films but resulted in more uniform transformation and improved shape memory effect. |
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| Keywords: | Ti-Ni-Pd thin films microstructure martensitic phase transformation shape memory effect |
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