Journal ArticleDOI
Strength and conductivity ofin situ Cu-Fe alloys
TLDR
In this paper, a curve of optimum tensile strength against electrical conductivity was determined for alloys of Cu-Fe with iron contents from 10 to 30 wt %, and it was suggested that further improvements may be possible in Cu-Nb alloys by improved thermal mechanism processing.Abstract:
Alloys of Cu-Fe with iron contents from 10 to 30 wt % have been prepared by casting plus mechanical reduction. A series of heat treatments was done at various stages of the mechanical reduction to promote precipitation of the iron from the copper matrix with the hope of optimizing electrical conductivity at a given strength level. A curve of optimum tensile strength against electrical conductivity was determined. It was found to lie significantly below the available data for Cu-Nb alloys and it is suggested that further improvements may be possible in Cu-Fe alloys by improved thermal mechanism processing.read more
Citations
More filters
Journal ArticleDOI
Microstructure and strength of CuFe in Situ composites after very high drawing strains
C. Biselli,D.G. Morris +1 more
TL;DR: In this article, the dependence of strenth on the extent of prior cold work has been analysed in relation to the evolution of microstructure, which induces a strong Bauschinger effect.
Journal ArticleDOI
Modeling the electrical resistivity of deformation processed metal–metal composites
Liang Tian,Liang Tian,Iver E. Anderson,Iver E. Anderson,Trevor M. Riedemann,Alan M. Russell,Alan M. Russell +6 more
TL;DR: In this paper, the electrical resistivity of deformation processed metal-metal (matrix-reinforcement) composites (DMMCs) is investigated and several possible physical mechanisms (i.e., phonons, interfaces, mutual solution, grain boundaries, dislocations) are analyzed.
Journal ArticleDOI
Effect of Ag on the microstructure and properties of Cu-Fe in situ composites
TL;DR: In this article, the properties of three Cu-Fe-Ag in situ composites were investigated by energy dispersive X-ray spectroscopy, showing that the presence of Ag reduced the solution of Fe in the matrix at high temperature, and the strength and conductivity increased at the same time.
Journal ArticleDOI
Microstructure and strength of CuFe in situ composites obtained from prealloyed CuFe powders
C. Biselli,D.G. Morris +1 more
TL;DR: In this article, it was shown that the very fine scale of the ribbon-shaped iron particles makes them very strong such that they deform elastically up to very high stresses, even when the composite begins to deform in a non-elastic manner.
Journal ArticleDOI
Strength and electrical conductivity of deformation-processed Cu-15 Vol Pct Fe alloys produced by powder metallurgy techniques
TL;DR: In this paper, it has been demonstrated that using high-purity gas-atomized Cu powders blended with commercial high purity Fe powders and controlling the time/temperature processing conditions within specific limits, it is possible to produce Cu-Fe deformation-processed alloys with strength/conductivity properties matching those of Cu-Nb, Cu-Ta, and Cu-Cr alloys.
References
More filters
Journal ArticleDOI
Anomalous increase in strength of in situ formed Cu‐Nb multifilamentary composites
TL;DR: In this paper, Niobium-Nb wire composites with 0.105, 0.148, and 0.182 volume fraction of Nb filaments were produced in situ and their mechanical properties measured as a function of filament size and interfilament spacing.
Journal ArticleDOI
Characterization of the strength and microstructure of heavily cold worked CuNb composites
TL;DR: In this paper, the authors evaluated the mechanical properties and microstructures of heavily cold worked wires of Cu-12% Nb and Nb-20% composites and found that the strength of these composites increases dramatically with increasing deformation up to a true strain of 11.9, the maximum investigated.
Journal ArticleDOI
On the strength of heavily cold worked in situ composites
P.D. Funkenbusch,T.H. Courtney +1 more
TL;DR: In this article, a model is developed to explain the strength of two-phase materials and the predictions of it are compared to results obtained in several systems and the agreement between the model developed and experimental results is good.
Journal ArticleDOI
Thermodynamic analysis of the iron-copper system I: The stable and metastable phase equilibria
TL;DR: In this paper, the stable and metastable equilibria of the Fe-Cu system were derived using the thermodynamic equations derived from equilibrium data, and the calculated metastable miscibility gap of the liquid phase also agrees with the experimental data.
Related Papers (5)
Microstructure and strength of CuFe in Situ composites after very high drawing strains
C. Biselli,D.G. Morris +1 more