Effect of silicon on microstructure and mechanical properties of Cu-Fe alloys

Jo, Hee Ra; Kim, Jeong Tae; Hong, Seung Hyun; Kim, Young Seok; Park, Hae Jin; Park, Woo Jin; Park, Jin Man; Kim, Ki Buem

doi:10.1016/j.jallcom.2016.12.352

Cited by 47 publications

(11 citation statements)

References 37 publications

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“…The negative value of TE means that the structure of Cu-Si is unstable, and phase transformation occurs with increasing Si content [130]. Recently,the mechanical properties of Fe-Cu alloys are enhanced by Si, which facilitates the precipitation hardening [131].…”

Section: Stacking Fault Energy Of Cu -Non Transition Metals Alloysmentioning

confidence: 99%

Generalised stacking fault energies of copper alloys - density functional theory calculations

Muzyk

Kurzydłowski

2019

J min metall B Metall

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Generalised stacking fault energies of copper alloys have been calculated using density functional theory. Stacking fault energy of copper alloys is correlated with the d-electrons number of transition metal alloying element. The tendency to twiningis also modified by the presence of alloying element in the deformation plane. The results suggest that Cu-transition metal alloys with such elements as Cr, Mo, W, Mn, Re are expected to exhibit great work hardening rate due to the tendency to emission of the partial dislocations.

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Section: Stacking Fault Energy Of Cu -Non Transition Metals Alloysmentioning

confidence: 99%

Generalised stacking fault energies of copper alloys - density functional theory calculations

Muzyk

Kurzydłowski

2019

J min metall B Metall

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“…Wang et al [14], Song et al [15], and Xie et al [16] investigated the influence of Ag. Kim et al [17], Cui et al [18], Song et al [19], Jo et al [20], Jeong et al [21], Wu et al [22], Chen et al [23], and Wang et al [24] investigated the effect of Cr, Co, Si, C, RE, M (Nb, Si, and V), and X (B, P, Si, Ge, Al, Mg, S, Cd, Ag, In, Sn, Zr, Sb, and Bi). The results indicate that the increase of tensile strength is primarily caused by second phase particles and filaments.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Strengthening Model of Cu–Fe In-Situ Composites

Liu

Sheng

et al. 2020

Materials

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The tensile strength evolution and strengthening mechanism of Cu–Fe in-situ composites were investigated using both experiments and theoretical analysis. Experimentally, the tensile strength evolution of the in-situ composites with a cold deformation strain was studied using the model alloys Cu–11Fe, Cu–14Fe, and Cu–17Fe, and the effect of the strain on the matrix of the in-situ composites was studied using the model alloys Cu–3Fe and Cu–4.3Fe. The tensile strength was related to the microstructure and to the theoretical strengthening mechanisms. Based on these experimental data and theoretical insights, a mathematical model was established for the dependence of the tensile strength on the cold deformation strain. For low cold deformation strains, the strengthening mechanism was mainly work hardening, solid solution, and precipitation strengthening. Tensile strength can be estimated using an improved rule of mixtures. For high cold deformation strains, the strengthening mechanism was mainly filament strengthening. Tensile strength can be estimated using an improved Hall–Petch relation.

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“…Copper (Cu) is widely employed in electrical and mechanical fields because of its excellent electrical [ 1 ], thermal conductivity [ 2 ], antifriction [ 3 ] and abrasion resistance [ 4 ]. However, the lower mechanical strength of Cu matrices is an intrinsic fault, which limits their applications in mechanical aspects.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Interfacial Bonding and Tensile Strength in CNT-Cu Composites by a Synergetic Method of Spraying Pyrolysis and Flake Powder Metallurgy

Chen

Bao

et al. 2019

Materials

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Carbon nanotube (CNT)-reinforced metal matrix composites (MMCs) face the problems of dispersion and interfacial wetting with regard to the matrix. A synergetic method of spray pyrolysis (SP) and flake powder metallurgy (FPM) is used in this paper to improve the dispersibility and interfacial bonding of CNTs in a Cu matrix. The results of the interface characterization show interface oxygen atoms (in the form of Cu2O) and a high density of dislocation areas, which is beneficial for interfacial bonding. The tensile results show that the tensile strength of the SP-CNT-Cu composites is much higher than that of the CNT-Cu composites when the mass fraction of the CNTs does not reach the critical value. This can be explained by the nanoparticles which are found on the surface of the CNTs during the SP process. These nanoparticles not only increase the tensile strength of the SP-CNT-Cu composites but also improve the dispersion of the CNTs in the Cu matrix. Thereby, uniform dispersion of CNTs, interfacial bonding between CNTs and the Cu matrix, and the enhancement of tensile strength are achieved simultaneously by the synergetic method.

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Effect of silicon on microstructure and mechanical properties of Cu-Fe alloys

Cited by 47 publications

References 37 publications

Generalised stacking fault energies of copper alloys - density functional theory calculations

Generalised stacking fault energies of copper alloys - density functional theory calculations

Microstructure and Strengthening Model of Cu–Fe In-Situ Composites

Enhancing Interfacial Bonding and Tensile Strength in CNT-Cu Composites by a Synergetic Method of Spraying Pyrolysis and Flake Powder Metallurgy

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