利用示差扫描量热法(DSC)研究了加热伸长、冷却收缩和加热收缩、冷却伸长2种TiNiCu双向记忆效应弹簧训练过程中相变特征.研究结果表明,训练前升温时,DSC曲线表现出吸热峰由多个小峰组成,随着训练次数的增加,峰的个数减少,具有稳定双向记忆效应的试样中,升温时只出现1个锐利的峰.这是因为在训练过程中引入特定取向的位错,产生一定的应力场,使得马氏体变体的取向比较一致,相变点基本相同所导致.并由于位错的引入,引起相变点As和Af下降.
参考文献
| [1] | Duerig T W.Application of Shape Memory[J].Materials Science Forum,1990(56-58):679-692. |
| [2] | 梁成浩,隋洪艳.TiNiCu形状记忆合金的耐蚀性研究[J].稀有金属材料与工程,2001(02):93-96. |
| [3] | X. T. Zu;L. M. Wang;Y. Huo;L. B. Lin;Z. G. Wang;T. C. Lu;L. J. Liu;X. D. Feng .Effect of electron irradiation on the transformation characteristics of narrow hysteresis TiNiCu shape memory alloys[J].Applied physics letters,2002(1):31-33. |
| [4] | 周守理 .The Application of Shape Memory Alloys in Aeronaustic and Space Fields[J].天津冶金,1998,1:1-3. |
| [5] | E.Cingolani;J.V.Humbeeck .Stabilization and two-way shape memory effect in Cu-Al-Ni single crystals[J].Metallurgical and materials transactions. A, physical metallurgy and materials science,1999(3):493-499. |
| [6] | Guilemany J M;Fernandez J .Effect of Training Time on Two Way Shape Memory Effect Obtained by Stress Induced Martensite[J].Scripta Metallurgica et Materialia,1994,30:59-61. |
| [7] | Wang Z G;Zu X T;Feng X D et al.Effect of Thermomechnical Treatment on the Two-Way Shape Memory Effect of NiTi Alloy Spring[J].Materials Letters,2002,54(01):55-61. |
| [8] | Wang Z G;Zu X T;Feng X D et al.Study of Two-Way Shape Memory Extension Spring of Narrow Hysteresis TiNiCu Shape Memory Alloys[J].Materials Letters,2002,56(03):284-288. |
| [9] | Wang ZG.;Zu XT.;Feng XD.;Lin LB.;Zhu S.;You LP.;Wang LM. .Design of TiNi alloy two-way shape memory coil extension spring[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):249-254. |
| [10] | Miller D A;Lagoudas D C .Themomechanical Characterization of NiTiCu and NiTi SMA Actuators: Influence of Plastic Strain[J].Smart Materials and Structures,2000,9:640-645. |
| [11] | 徐祖耀.马氏体相变与马氏体[M].北京:科学出版社,1999:59. |
| [12] | 谭树松;徐惠彬 .Mullerl, Calorimetric Measurements for one Way and Two Way Memory Alloys[J].金属学报,1994,30(09):404-407. |
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