Journal Archive
- Volume 47
- Issue 2
- Apr 2003
- Pages 46-58
Back to 2003, Volume 47, Issue 2
Optimised Mechanical Properties of Ordered Noble Metal Alloys
I. PRELIMINARY STRONG COLD DEFORMATION RESULTS IN OPTIMISED MECHANICAL PROPERTIES
- B. A. Greenberg
- N. A. Kruglikov
- L. A. Rodionova
- A. Yu. Volkov
- L. G. Grokhovskaya
- G. M. Gushchin
- I. N. Sakhanskaya
- Platinum Metals Rev.,
- 2003,
- 47,
- (2),
- 46
Article Synopsis
The deformation behaviour of alloys that are ordered to form an L10 or L12 superstructure after heavy plastic deformation has been studied. Alloys with the L10 superstructure, such as NiPt, FePd, CoPt and CuAu, possess an optimum combination of high strength and plasticity after thermomechanical treatment. However, such properties were not obtained in Pd3Fe, Pt3Co or Cu3Au which have the L12 superstructure. The structure of FePd was examined by transmission electron microscopy upon annealing after heavy drawing and a set of typical superstructural states was found. The conditions needed to impart high strength and plastic properties to some ordered alloys based on noble metals are discussed.
