Cu-44Ni-5Cr alloy has been subjected to thermomechanical treatment which consisted of plastic deformation of as-quenched material by 50, 65 and 80% reduction in thickness followed by ageing in the interval of 500 to 650 °C for various durations of time. Progress in age-hardening was studied by means of hardness measurement and X-ray diffraction studies. The wavelength of composition modulation and strain amplitude were measured. It was found that age-hardening was a result of interaction between spinodal decomposition and recovery processes. Prior deformation was found to enhance the kinetics of both spinodal decomposition and coarsening. It was concluded that this resulted from increased vacancy concentration and increased coherency strain in the cold-worked material. © 1994 Chapman & Hall.

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dc.contributor.authorRaghavendra Bhat, R.
dc.contributor.authorPrasad Rao, P.
dc.date.accessioned2026-02-05T11:00:36Z
dc.date.issuedEffect of thermomechanical treatment on the phase transformation in Cu-44Ni-5Cr alloy
dc.description.abstract1994
dc.identifier.citationJournal of Materials Science, 1994, 29, 18, pp. 4808-4818
dc.identifier.issn222461
dc.identifier.urihttps://doi.org/10.1007/BF00356527
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/28079
dc.publisherKluwer Academic Publishers
dc.subjectAge hardening
dc.subjectCold working
dc.subjectDecomposition
dc.subjectDeformation
dc.subjectPhase transitions
dc.subjectQuenching
dc.subjectReaction kinetics
dc.subjectRecovery
dc.subjectStrain
dc.subjectThermomechanical treatment
dc.subjectX ray analysis
dc.subjectAs quenched material
dc.subjectHardness measurement
dc.subjectPlastic deformation
dc.subjectSpinodal decomposition
dc.subjectVacancy concentration
dc.subjectX ray diffraction
dc.subjectCopper alloys
dc.titleCu-44Ni-5Cr alloy has been subjected to thermomechanical treatment which consisted of plastic deformation of as-quenched material by 50, 65 and 80% reduction in thickness followed by ageing in the interval of 500 to 650 °C for various durations of time. Progress in age-hardening was studied by means of hardness measurement and X-ray diffraction studies. The wavelength of composition modulation and strain amplitude were measured. It was found that age-hardening was a result of interaction between spinodal decomposition and recovery processes. Prior deformation was found to enhance the kinetics of both spinodal decomposition and coarsening. It was concluded that this resulted from increased vacancy concentration and increased coherency strain in the cold-worked material. © 1994 Chapman & Hall.

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