TiNiFe形状记忆合金高温应力松弛稳定性

刘福顺; 韩冬; 郑蕾; 徐惠彬

TiNiFe形状记忆合金高温应力松弛稳定性

北京航空航天大学材料科学与工程学院北京 100083

详细信息

作者简介:
刘福顺(1954-),男,河北保定人,副教授, liufs@buaa.edu.cn.

中图分类号: TG 1396
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出版历程
- 收稿日期: 2004-04-28
- 网络出版日期: 2004-10-31

High-temperature relaxation of TiNiFe shape memory alloy

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 对形状记忆合金管接头来讲,应力松弛对在服役条件下的管接头影响更大,因此,系统地研究航空用形状记忆合金管接头在服役条件下的应力松弛的稳定性具有重要的现实意义.研究了TiNiFe和TiNiNb两种管接头用形状记忆合金在不同温度条件下的应力松弛稳定性.试验在美国880型100KN-MTS实验机上进行,通过试验得到2种合金的应力松弛曲线,结果表明,TiNiFe和TiNiNb形状记忆合金在高温下,都具有很好的稳定性.TiNiNb形状记忆合金在300℃时的应力松弛稳定性稍好于TiNiFe形状记忆合金.但是,TiNiFe形状记忆合金所承受的载荷比TiNiNb形状记忆合金要高.温度对形状记忆合金高温稳定性存在很大的影响,但其对应力松弛不同阶段的影响程度不同.
- 形状记忆合金 /
- 应力松弛 /
- TiNiFe /
- TiNiNb
Abstract: For the shape memory alloy pipe connector, the stress relaxation’s stability has more influence on the pipe connector in the working environment. So the particular study on the stress relaxation’s stability of the aero shape memory alloy pipe connectors in the working environment has vital practical significance. The stress relaxation and stability of TiNiFe and TiNiNb shape memory alloys were investigated under different temperature. The examination was experimentalized on American 880 type 100KN-MTS, through which stress relaxation curves of the TiNiNb and TiNiFe shape memory alloys were gained. It is indicated that at high temperature both alloys are of good stability. At 300℃, TiNiNb alloy performed a better stability to resist the stress relaxation than TiNiFe alloy; but TiNiFe alloy can endure higher load than TiNiNb alloy. Temperature has great influence on the high-temperature stability of shape memory alloy, but the degree of influence on the different stages of the stress relaxation is different.
- shape memory alloys /
- stress relaxation /
- TiNiFe /
- TiNiNb

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参考文献(1)

[1] Xu Huibin, Jiang Cengbao, Gong Shengkai. Phase transformation and hysteresis of TiNiFe memory alloys [J]. Materals Science and Engineering, 2000,A281:234~238 [2] 刘福顺,宫声凯,徐惠彬.TiNi形状记忆合金表面绝缘膜的原位生长过程和相结构[J].中国有色金属学报,2001,11(5):867~870 Liu Fushun,Gong Shengkai, Xu Hubin. Microstructure and in-situ growth process of insulating films on TiNi shape memory alloys[J].The Chinese Journal of Nonferrous Metals, 2001,11(5):867~870(in Chinese) [3] 徐惠彬.形状记忆合金及其智能化研究[J]. 材料研究学报,1995,9(增刊):99~103 Xu Hhuibin. Shape memory alloys and smart structure research[J]. Chinese Journal of Materials Research, 1995,9(supplement):99~103(in Chinese) [4] Xu Huibin, Tan S, Muller I. In situ observation of thermo-and stress induced martensitic transformation in shape memory alloys Z[J].　Metallkunde,1998,89:59~64 [5] 张志芳,张春生,蔡伟,等.Ni-Ti-Nb 宽滞后记忆合金的组织性能及其在航空工业中的应用[J].材料工程,1992,02:18~20 Zhang Zhifang, Zhang Chunsheng, Cai Wei, et al.The structure, properties and application in the aviation industry of Ni-Ti-Nb wide hysteresis shape memory alloys[J]. Function Material, 1992,02:18~20(in Chinese) [6] 李志云,刘福顺,徐惠彬.Fe元素对TiNi形状记忆合金相变点和力学性能的影响[J].航空学报,2004,25(1):84~88 Li Zhiyun, Liu Fushun, Xu Huibin. Influence of Fe addition on phase transformation temperatures and mechanical properties of TiNi shape memory alloys[J]. Acta Aeronautica et Astronautica Sinica, 2004,25(1):84~88(in Chinese) [7] Xu Huibin, Jiang Chengbao, Gong Shengkai. Martensitic transformation of the Ti₅₀Ni₄₈Fe₂ alloy deformed at different temperatures . Materals Science and Engineering, 2000,A281:234~238 [8]Belyayev S P, Kuzmin S L, Likhachev V A, et al. Simulation of the processes of reversible shape change in TiNiFe [J]. Fiz Metal Metalloved,1989,68:617~619 [9] 林新城,谷南驹,赵连城.FeMnSi系形状记忆合金低温松弛分析[J].功能材料(增刊),2001,10:927~929 Lin Xincheng, Gu Nanju, Zhao Liancheng. Mechannism of low-temperature relaxation of Fe-Mn-Si based shape memory alloy[J]. Function Material, 2001,10:927~929(in Chinese)

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