OBSERVATIONS ON PARTICLE-SIZE SPACING RELATIONSHIPS AND PHASE-EQUILIBRIA IN THE CU-NI-CR SYSTEM


FINDIK F.

JOURNAL OF MATERIALS SCIENCE, vol.28, no.18, pp.5056-5059, 1993 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 18
  • Publication Date: 1993
  • Doi Number: 10.1007/bf00361178
  • Title of Journal : JOURNAL OF MATERIALS SCIENCE
  • Page Numbers: pp.5056-5059

Abstract

The development of increased strength in.Cu-Ni-Cr alloys, compared to binary Cu-Ni alloys, depends upon heat treatment. Alloys have compositions which permit them to be solution treated at elevated temperature and then aged at a lower temperature, in a two-phase field, to produce hardening. The decomposition into two phases may occur by nucleation and growth or by a spinodal reaction, depending on the alloy composition and the heat-treatment temperature. In this study, the relationship between particle size and wavelength (interparticle spacing) was studied in some Cu-Ni-Cr spinodal alloys and it was found that the wavelength was directly proportional to the particle size. Also, the Cu-Ni-Cr ternary diagram at the 930-degrees-C isothermal section was similar to that obtained by Meijering et al.