Microstructure and properties of Cu–Fe microcomposites with prior homogenizing treatments

Wu, Zhiwen; Chen, Y.; Meng, Liang

doi:10.1016/j.jallcom.2009.03.078

Cited by 25 publications

(16 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Superior performance of the alloy is directly correlated with its microstructure [4][5][6][7]. Usually, hardness measurement is a simple method of examining mechanical properties [5,7,8]. At present, many efforts (such as heat treatment, thermo-mechanical treatment, addition rare earth elements and nucleating agent etc.)…”

Section: Introductionmentioning

confidence: 99%

Microstructure and hardness of undercooled Ni78.6Si21.4 eutectic alloy

Liu

Shi

et al. 2010

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Microstructure and hardness of undercooled Ni78.6Si21.4 eutectic alloy

Liu

Shi

et al. 2010

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…It has been documented that the phase interface plays a major strengthening role in the heavily drawn Cu-X (X=Nb, Fe, Ag, Cr) alloys (Biselli and Morris, 1996;Wu et al, 2009;Badinier et al, 2014). As a result, the Cu-6% Fe alloy shows a much higher strength than pure Cu.…”

Section: Discussionmentioning

confidence: 99%

Microstructure and properties of cold drawing Cu-2.5% Fe-0.2% Cr and Cu-6% Fe alloys

Bao

Chen

et al. 2015

J. Zhejiang Univ. Sci. A

View full text Add to dashboard Cite

High strength and high conductivity Cu-based materials are key requirements in high-speed railway and high-field magnet systems. Cu-Fe alloys represent one of the most promising candidates due to the cheapness of Fe compared to Cu-Ag and Cu-Nb alloys. The high strength of Cu-Fe alloys primarily relies on the high density of the Cu/Fe phase interface, which is controlled by the co-deformation of the Cu matrix and Fe phase. In this study, our main attention was focused on the deformation behavior of the Fe phase using different scales. Cu-2.5% Fe-0.2% Cr (in weight) and Cu-6% Fe alloys were cast, annealed, and cold drawn into wires to investigate their microstructure and properties evolution. Cu-6% Fe contains Cu matrix and Fe, which become the primary particles in the micrometer scale after solution treatment. Cu-2.5% Fe-0.2% Cr contains Cu matrix and Fe precipitate particles in a nanometer scale after solution and aging treatment. The Fe primary particles were elongated and evolved into ribbons in a nanometer scale while the Fe precipitate particles were hardly deformed even at a drawing strain of 6. The reason for the unchanging characteristics of Fe precipitate particles is due to the size effect and incoherent phase interface of Cu matrix and Fe precipitate particles. The strength of both Cu-6% Fe and Cu-2.5% Fe-0.2% Cr alloys increases with the increase in the drawing strain. The electrical resistivity of Cu-6% Fe gradually increases and that of Cu-2.5% Fe-0.2% Cr keeps almost constant with the increase in the drawing strain.

show abstract

“…Due to good combination of strength and conductivity, deformation processed in situ Cu-based metal matrix composites containing a body-centered cubic (bcc) transition metal such as Nb, Fe, Cr have been widely studied in the past two decades [1][2][3][4][5][6][7][8][9][10]. The composites are considered as candidate materials in the fields of steady state and long-pulse high-field resistive magnet designs.…”

Section: Introductionmentioning

confidence: 99%

“…Upon solidification of these alloys, bcc dendrites form in the copper matrix and the subsequent mechanical reduction reduces the dendrites to aligned filaments with a ribbon-like cross-section. Extensive studies showed the tensile strength of the deformation processed in situ composites could be described by Hall-Petch equation: = 0 + k −1/2 , where is the ultimate tensile strength, 0 is the friction stress reported to be near 0 MPa, k is the Hall-Petch coefficient and is the filament spacing [4][5][6][7][8][9][10]. It is obvious that the ultimate tensile strength increases with the decrease of the filament spacing which depends on the drawing strain and the initial microstructure.…”

Section: Introductionmentioning

confidence: 99%