Influence of a high magnetic field on the microstructure and properties of a Cu-Fe-Ag in situ composite

Liu, K. M., Lu, D. P., Zhou, H. T., Chen, Z. B., Atrens, A. and Lu, L. (2013) Influence of a high magnetic field on the microstructure and properties of a Cu-Fe-Ag in situ composite. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 584 114-120. doi:10.1016/j.msea.2013.07.016


Author Liu, K. M.
Lu, D. P.
Zhou, H. T.
Chen, Z. B.
Atrens, A.
Lu, L.
Title Influence of a high magnetic field on the microstructure and properties of a Cu-Fe-Ag in situ composite
Journal name Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing   Check publisher's open access policy
ISSN 0921-5093
1873-4936
Publication date 2013-11
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.msea.2013.07.016
Volume 584
Start page 114
End page 120
Total pages 7
Place of publication Lausanne, Switzerland
Publisher Elsevier SA
Collection year 2014
Language eng
Formatted abstract
The influence of a magnetic field during heat treatments was studied for a deformation-processed Cu-14Fe-0.1Ag in situ composite produced by thermo-mechanical processing. A high magnetic field during initial heat treatment promoted the spheroidization and refinement of Fe dendrites, and decreased the diffusion activation energy of Fe atoms in the Cu matrix, which promoted Fe atom precipitation. The resultant in situ composite had thinner Fe fibers, higher tensile strength and better conductivity. A high magnetic field during intermediate heat treatment increased the conductivity and tensile strength. The strength, conductivity and elongation to fracture of a Cu-14Fe-0.1Ag in situ composite could be improved simultaneously using a high magnetic field during the initial, intermediate and final heat treatment. The following combination of properties could be produced by the Cu-14Fe-0.1Ag in situ composite at ·=7.8 after isochronic aging for 1. h using 10. T magnetic induction intensity: (i) 1149. MPa tensile strength, 60.3% IACS conductivity and 3.3% elongation; or (ii) 1093. MPa, 61.9% IACS and 3.5%; or (iii) 1006. MPa, 63.7% IACS and 3.7%.
Keyword High magnetic field
In situ composite
Microstructure
Properties
Electrical Conductivity
Microcomposite Wires
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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