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RESEARCH PAPERS

Tensile Deformation and Rotating-Bending Fatigue Properties of a Highelastic Thin Wire, a Superelastic Thin Wire, and a Superelastic Thin Tube of NiTi Alloys

[+] Author and Article Information
R. Matsui, H. Tobushi, Y. Furuichi

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

H. Horikawa

Furukawa Techno Material Co., Ltd., 5-1-8 Higashi-Hachiman, Hiratsuka, 254-0016, Japan

J. Eng. Mater. Technol 126(4), 384-391 (Nov 09, 2004) (8 pages) doi:10.1115/1.1789952 History: Received April 25, 2003; Revised April 20, 2004; Online November 09, 2004
Copyright © 2004 by ASME
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References

Funakubo, H., ed., 1987, Shape Memory Alloys, Gordon and Breach Science Pub.
Duerig, T. W., Melton, K. N., Stockel, D., and Wayman, C. M., eds., 1990, Engineering Aspects of Shape Memory Alloy, Butterworth-Heinemann.
Otsuka, K., and Wayman, C. M., eds., 1998, Shape Memory Materials, Cambridge University Press.
Saburi, T., ed., 2000, Shape Memory Materials, Trans Tech Pub.
Chu, Y. Y., and Zhao, L. C., eds., 2002, Shape Memory Materials and Its Applications, Trans Tech Pub.
Furukawa Catalogue, 2000, No. 2E-GISI-00-21.
Holtz,  R. L., Sadananda,  K., and Imam,  M. A., 1999, “Fatigue Thresholds of Ti-Ni Alloy Near the Shape Memory Transition Temperature,” Int. J. Fatigue, 21, pp. 137–145.
McKelvey,  A. L., and Ritchie,  R. O., 2001, “Fatigue-Crack Growth Behavior in the Superelastic and Shape-Memory Alloy Nitinol,” Metall. Mater. Trans. A, 32A, pp. 731–743.
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, 35-3, pp. 278–284.
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.
Shaw,  J. A., and Kyriakides,  S., 1995, “Thermomechanical Aspects of NiTi,” J. Mech. Phys. Solids, 43-8, pp. 1243–1281.
Kyriakides, S., 2001, “Propagating Instabilities in Materials,” Materials Science for the 21st Century, A , pp. 316–325, Soc. Mater. Science., Japan.
Tanaka,  K., Kobayashi,  S., and Sato,  Y., 1986, “Thermomechanics of Transformation Pseudoelasticity and Shape Memory Effect in Alloys,” Intern. J. Plasticity,2, pp. 59–72.
Tobushi,  H., Takata,  K., Shimeno,  Y., Nowacki,  W. K., and Gadaj,  S. P., 1999, “Influence of Strain Rate on Superelastic Behavior of TiNi Shape Memory Alloy,” Pro. Instn. Mech. Engrs.,213, Part L, pp. 93–102.
“Geometrical Product Specifications (GPS)—Surface Texture: Profile Method—Terms, Definitions and Surface Texture Parameters,” JIS B 0601 (ISO 4287).
Miyazaki,  S., Otsuka,  K., and Suzuki,  Y., 1981, “Pseudoelasticity and Deformation Behavior in a Ti-50.6at%Ni Alloy,” Scr. Mater., 15, pp. 287–292.

Figures

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Schematic drawing of rotating-bending fatigue test machine
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Stress-strain curves for SE-NT at T=303 K: (a) influence of strain rate; and (b) influence of stress rate
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Relationship between strain amplitude and number of cycles to failure for SE-NT: (a) influence of temperature T; and (b) influence of frequency f
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SEM photographs of fracture surface for SE-NT: (a) whole fracture surface; (b) fracture surface at crack initiation; and (c) fracture surface of unstable fracture
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Stress-strain curves for NT-Tube at various temperatures T
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Relationship between strain amplitude and number of cycles to failure for NT-Tube: (a) influence of temperature T; and (b) influence of frequency f
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Relationship between strain amplitude εa and number of cycles to failure Nf for SE-NT and NT-Tube
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SEM photographs of fracture surface for NT-Tube: (a) whole fracture surface; (b) fracture surface at crack initiation; (c) fracture surface of unstable fracture; and (d) fracture surface at final fracture
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Surface roughness of NT-Tube
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Stress-strain curves for FHP-NT: (a) influence of temperature T; (b) influence of strain rate; and (c) influence of stress rate
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Stress-strain curve with subloop for FHP-NT
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Relationship between strain amplitude and number of cycles to failure for FHP-NT: (a) influence of temperature T; and (b) influence of frequency f
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SEM photographs of fracture surface for FHP-NT: (a) whole fracture surface; (b) fracture surface at crack initiation; and (c) fracture surface of unstable fracture
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Relationship between ratio of fatigue-crack surface area Ac/A0 and strain amplitude εa

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