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The Effect of Applied Stress of the Decomposition Cu-15Ni-8Sn Spinodal Alloy

Published online by Cambridge University Press:  21 February 2011

S. Ahn  and
T. Tsakalakos
S. Ahn
Affiliation:
Department of Mechanics and Materials Science, College of Engineering, Rutgers University, new Brunswick, New Jersey 08854
T. Tsakalakos
Affiliation:
Department of Mechanics and Materials Science, College of Engineering, Rutgers University, new Brunswick, New Jersey 08854
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Abstract

The effect of stress on spinodal decomposition in Cu-15Ni-8Sn alloy was investigated at various temperatures and stresses. As the aging temperature approached the coherent spinodal temperature about 500°C, the anisotropy among the three equivalent <100> modulations of the stress aged specimens became pronounced. The wavelength of the [001] modulation along the tensile stress axis was smaller than that of the [100] or [010] modulation perpendicular to the stress axis. TEM diffraction patterns also showed the anisotropy effect of the applied stress to the composition modulation. A theoretical model based on micromechanics concepts was employed to explain the experimental results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 21: Symposium GREECE – Phase Transformations in Solids , 1983 , 539
Copyright
Copyright © Materials Research Society 1984

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References

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