Processing Induced Change οf Thermal Transport Properties οf NiTi-Shape Memory Alloy

• Authors: J. Gibkes , B. Bein , J. Pelzl , A. Wieck , J. Frenzel , G. Eggeler , I. Delgadillo-Holtfort , M. Chirtoc
• Languages of publication: EN

Abstracts

EN

Photothermal radiometry was applied to investigate the influence of a rolling process on the thermal properties of NiTi foils. The thermal diffusivity and thermal effusivity of the foils were determined at room temperature from the frequency variation of the photothermal signals in thermal transmission. Measurements were conducted on unrolled, rolled and thermally annealed samples. The thermal diffusivity and thermal effusivity are found to decrease considerably on rolling which is attributed to the influence of the rolling induced lattice defects.

Keywords

EN

62.20.Fe; 78.20.Nv; 83.50.-v

Discipline

• 83.50.-v: Deformation and flow

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 6A
• Pages: A-97-A-101

Dates

published

2008-12

Contributors

author

J. Gibkes

• Institut für Experimentalphysik, Ruhr-Universität, D-44801 Bochum, Germany

author

B. Bein

• Institut für Experimentalphysik, Ruhr-Universität, D-44801 Bochum, Germany

author

J. Pelzl

• Institut für Experimentalphysik, Ruhr-Universität, D-44801 Bochum, Germany

author

A. Wieck

• Institut für Experimentalphysik, Ruhr-Universität, D-44801 Bochum, Germany

author

J. Frenzel

• Institute for Materials Science and Engineering, Ruhr-University, D-44801 Bochum, Germany

author

G. Eggeler

• Institute for Materials Science and Engineering, Ruhr-University, D-44801 Bochum, Germany

author

I. Delgadillo-Holtfort

• Instituto de Física de la Universidad de Guanajuato, IFUG, Apdo. E-143 León, Gto., Mexico

author

M. Chirtoc

• LTP, UTAP, Université de Reims, BP 1039, 51687 Reims Cedex 2, France

References

• 1. J. van Humbeeck, Mater. Sci. Eng. A 273-275, 134 (1999)
• 2. M. Kaack, I. Delgadillo-Holtfort, T. Yohannes, J. Pelzl, Mater. Sci. Eng. A 378, 119 (2004)
• 3. J. Gibkes, A. AlHajDaoud, Ch. Zamponi, R. Wernhardt, B.K. Bein, J. Pelzl, in: Proc. Int. Conf. Shape Memory and Superelastic Technologies SMST-2004, Baden-Baden, Eds. M. Mertmann, H. Fischer, Trans Tech Publ., Zurich 2005

Identifiers

DOI

10.12693/APhysPolA.114.A-97