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J Mater Sci Technol  1999, Vol. 15 Issue (06): 519-522    DOI:
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Effect of Prior Deformation on Aging Process in a Cu-30Ni-25Fe Spinodal Alloy
Xinjiang HAO, Hongxiao LI, Gang ZHAO, Shiming HAO
School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China
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Abstract  The effect of prior deformation on the mechanical properties and microstructural evolution of aging process in a Cu-30Ni-25Fe (in at. pct) alloy has been studied by tensile test, hardness measurement, SEM and optical microscopy analysis. The results show that spinodal decomposition and recovery process interact on each other when aged at low temperature (600℃), and most of the defects induced by cold-work did not disappear in 100 h. When aged at high temperature (850℃), the discontinuous coarsening of the spinodal products takes place. The increase in yield strength and elongation of the sample aged at 850℃ for 5 h after deformation mainly results from the submicrometer grains produced by discontinous coarsening of spinodal products.
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Received:  06 May 1999     
Corresponding Authors:  Xinjiang HAO     E-mail:

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Xinjiang HAO, Hongxiao LI, Gang ZHAO, Shiming HAO. Effect of Prior Deformation on Aging Process in a Cu-30Ni-25Fe Spinodal Alloy. J Mater Sci Technol, 1999, 15(06): 519-522.

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