Abstract
This paper summarizes several recent advances in the micro-macro combined experimental study on the mechanical behavior of single crystal shape memory alloys (SMAs) by using the Moiré interferometry. The first is the realization of the in-situ full-field deformation measurement on the β1↔γ′1 and β1↔β′1 martensitic transformation and γ′1→γ′1 reorientation processes under uniaxial tensile stress in single crystal CuAlNi SMA. The second is the discovery of distortion of the p-m interface in the case of superelasticity. The third is the observation of the transformation zone development in stress gradient fields of 4-point-bending and notched beams specimen. Implications of these discoveries are discussed briefly.
On leave from Tsinghua University, Beijing 100084, P.R. China
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References
Post D., Han B. and Ifju P. (1994) High Sensitivity Moiré: Experimental Analysis for Mechanical and Materials, Springer-Verlag, New York.
Wayman, C. M. (1964) An Introduction to Crystallography of Martensite Transformation, Macmillan, New York.
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© 1999 Kluwer Academic Publishers
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Sun, Q.P., Zhang, X.Y., Terry, X.T. (1999). Some Recent Advances in Experimental Study of Shape Memory Alloys. In: Bruhns, O.T., Stein, E. (eds) IUTAM Symposium on Micro- and Macrostructural Aspects of Thermoplasticity. Solid Mechanics and its Applications, vol 62. Springer, Dordrecht. https://doi.org/10.1007/0-306-46936-7_39
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DOI: https://doi.org/10.1007/0-306-46936-7_39
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-5265-5
Online ISBN: 978-0-306-46936-7
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