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A Study on Fatigue Properties of a TiNi/Al Shape Memory Alloy

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Abstract:

Shape memory alloy (SMA) has been used to improve the tensile strength of composite materials. Because it produces compressive residual stress in the matrix by using its shape memory effect. In order to fabricate a shape memory alloy composite, TiNi alloy and Al2024, Al6061 were used as reinforcing material and matrix, respectively. In this study, TiNi/Al2024 and TiNi/Al6061 shape memory alloy composites were made by the hot press method. The fatigue limit of a shape memory alloy composite determined the volume ratio and reduction ratio. The probabilistic stresslife curve (P-S-N curve) about the shape memory alloy composite makes up using statistical method.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

309-312

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.309

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Online since:

October 2007

Authors:

Young Chul Park, Jung Ho Kang, Jin Kyung Lee, Jang Hyun Sung, Seok Heum Baek, Young Jik Jo

Keywords:

Fatigue Life, Hot-Pressing, Probabilistic Stress Life Curve, TiNi/Al Shape Memory Alloy

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] Baker, A. A.: Bonded Composite Repair of Fatigue-Cracked Primary Aircraft Structure, Composite Structures, Vol. 47 (1999), p.431~443.

DOI: 10.1016/s0263-8223(00)00011-8

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[2] Baek, S. H., Kim, J. K., Kang, D. H., Kong, H. G., Cho, S. S., Kang, J. H., Park, Y. C. and Joo, W. S.: Key Engineering Materials, Vol. 347 (2007), p.723~728.

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