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TECHNICAL PAPERS

Low-Cycle Fatigue of TiNi Shape Memory Alloy and Formulation of Fatigue Life

[+] Author and Article Information
Hisaaki Tobushi, Takafumi Nakahara, Yoshirou Shimeno

Department of Mechanical Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yagusa-cho, Toyota 470-0392 Japan

Takahiro Hashimoto

Takiron Co., Ltd., 2-3-13 Azuchi-cho, Chuo-ku, Osaka 541-0052 Japan

J. Eng. Mater. Technol 122(2), 186-191 (Nov 08, 1999) (6 pages) doi:10.1115/1.482785 History: Received July 27, 1998; Revised November 08, 1999
Copyright © 2000 by ASME
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References

Perkins, J., 1975, Shape Memory Effects in Alloys, Plenum Press, New York.
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McNichols,  J. L., and Brookes,  P. C., 1981, “NiTi Fatigue Behavior,” J. Appl. Phys., 52, No. 12, pp. 7442–7444.
Melton,  K. N., and Mercier,  O., 1979, “Fatigue of NiTi Thermoelastic Martensites,” Acta Metallurgica, 27, pp. 137–144.
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Otsuka, K., 1990, “Introduction to the R-Phase Transition,” Engineering Aspects of Shape Memory Alloys, T. W. Duerig, K. N. Melton, D. Stockel, and C. M. Wagman, eds., Butterworth-Heinemann, London, pp. 36–45.
Miyazaki,  S., and Otsuka,  K., 1986, “Deformation and Transition Behavior Associated with the R-Phase in Ti-Ni Alloys,” Metall. Trans. A, 17, pp. 53–63.
Tobushi,  H., Yamada,  S., Hachisuka,  T., Ikai,  A., and Tanaka,  K., 1996, “Thermomechanical Properties Due to Martensitic and R-Phase Transformations of TiNi Shape Memory Alloy Subjected to Cyclic Loadings,” Smart Mater. Struct., 5, pp. 788–795.
Tobushi,  H., Hachisuka,  T., Yamada,  S., and Lin,  P. H., 1997, “Rotating-Bending Fatigue of a TiNi Shape-Memory Alloy Wire,” Mech. Mater., 26, pp. 35–42.
Tobushi,  H., Hachisuka,  T., Hashimoto,  T., and Yamada,  S., 1998, “Cyclic Deformation and Fatigue of a TiNi Shape-Memory Alloy Wire Subjected to Rotating Bending,” ASME J. Eng. Mater. Technol., 120, pp. 64–70.
Tobushi,  H., Tanaka,  K., Kimura,  K., Hori,  T., and Sawada,  T., 1992, “Stress-Strain-Temperature Relationship Associated with the R-Phase Transformation in TiNi Shape Memory Alloy,” JSME Int. J. Ser. I, 35, No. 3, pp. 278–284.
Tanaka,  K., Kobayashi,  S., and Sato,  Y., 1986, “Thermomechanics of Transformation Pseudoelasticity and Shape Memory Effect in Alloys,” Int. J. Plast., 2, pp. 59–72.
Tobushi,  H., Lin,  P. H., Tanaka,  K., Lexcellent,  C., and Ikai,  A., 1995, “Deformation Properties of TiNi Shape Memory Alloy,” J. Phys. IV, C2, No. 5, pp. 409–413.
Mikuriya,  S., Nakahara,  T., Tobushi,  H., and Watanabe,  H., 1999, “The Estimation of Temperature Rise on Low Cycle Fatigue of TiNi Shape Memory Alloy,” Trans. Jpn. Soc. Mech. Eng., Ser. A, 65, No. 633, pp. 1099–1104.
Coffin, L. F., 1978, “Fatigue in Machines and Structures-Power Generation,” Materials Science Seminar, Fatigue and Microstructures, St. Louis, American Society for Metals, pp. 1–28.
Sakuma, T., Iwada, U., Kariya, N., and Ochi, Y., 1998, “Fatigue Life of TiNiCu Shape Memory Alloy under Thermo-mechanical Conditions,” Proc. of 11th Inter. Conf. on Exp. Mech., Oxford, Vol. 2, pp. 1121–1126.
Tobushi,  H., Shimeno,  Y., Hachisuka,  T., and Tanaka,  K., 1998, “Influence of Strain Rate on Superelastic Properties of TiNi Shape Memory Alloy,” Mech. Mater., 30, pp. 141–150.

Figures

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Strain amplitude versus fatigue life in water and in silicone oil
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Temperature distribution in the specimen obtained through the thermograph (εa=1.54 percent,f=1000 cpm,t=60 s)
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Temperature rise with lapse of time during fatigue test (εa=1.54 percent)
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Relationship between saturated temperature rise ΔTRT and frequency
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Strain amplitude versus fatigue life at various frequencies f in air
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Strain amplitude versus fatigue life for various shape-memory processing temperatures Tp
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Stress-strain curves for various shape-memory processing temperatures Tp
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Relationship between saturated temperature rise ΔTRT and frequency in a logarithmic scale
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Relationship between dissipated work and temperature
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Strain-life curves at various temperatures in water
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Strain-life curves at various temperatures in air

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