Original scientific paper

Decomposition of the supersaturated solid solution in the Cu-Ni-Sn system

Slavica Zec ; Institute of Nuclear Sciences “Boris Kidrič” - Vinča, Department of Materials Science, P. O. B. 522., 11001 Beograd, Yugoslavia
Radomir Kostić ; Institute of Nuclear Sciences “Boris Kidrič” - Vinča, Department of Materials Science, P. O. B. 522., 11001 Beograd, Yugoslavia
Milan Jovanović ; Institute of Nuclear Sciences “Boris Kidrič” - Vinča, Department of Materials Science, P. O. B. 522., 11001 Beograd, Yugoslavia
Branko Đurić ; Institute of Nuclear Sciences “Boris Kidrič” - Vinča, Department of Materials Science, P. O. B. 522., 11001 Beograd, Yugoslavia

Abstract

The strengthening of the Cu-10 wt.% Ni-4 wt. % Sn supersaturated solid solution during ageing was followed by hardness measurement. The corresponding changes in structure were followed by optical microscopy and x-ray diffraction. After initial fast increase in hardness caused by spinodal decomposition a maximum in hardness is reached that corresponds to a decomposition of the matrix into two f.c.c. structures with different lattice parameters. The decrease in hardness after longer ageing times is caused by discontinuous precipitation of equilibrium a + y phase and recrystallisation of the matrix.

Keywords

Hrčak ID:

329103

URI

https://hrcak.srce.hr/329103

Publication date:

7.5.1984.

Article data in other languages: serbian

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