Microstructure and mechanical properties of a Cu-Fe-Nb alloy with a high product of the strength times the elongation

Zhang, Ping; Lei, Qian; Yuan, Xiaobo; Sheng, Xiaofei; Jiang, Dong; Li, Yunping; Zhou, Li

doi:10.1016/j.mtcomm.2020.101353

Cited by 26 publications

(15 citation statements)

References 36 publications

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“…Fe-Co alloys in the form of thin films are also widely used in lightweight microwave absorbers (LMA) for electronic communications and military defence [8]. The high strength and electrical properties of the Fe-Cu-Nb alloy lead to an increase in the electrical industry, as reported by Ping Zhang [9]. According to a literature survey by Mengmeng Wang et al Ni-Fe alloys exhibit high corrosion resistance [10,11].…”

Section: Introductionmentioning

confidence: 99%

Structural, thermal and optical characteristics of Fe _1−X Zr _X alloy by using mechanical milling approach: influence of Zr⁴⁺ ion

Illayaraja Muthaiyaa,

Parameshwaranpillai,

Krishnamoorthy

et al. 2024

Mater. Res. Express

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By changing Zr concentrations, Fe1-x-Zrx (x= 0.25 & 1 at.%) alloys were successfully produced in an argon atmosphere using the mechanical alloying method. The produced Fe1-x-Zrx alloys were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersion X-ray analysis (EDAX), fourier transform infrared spectroscopy (FTIR), thermogravimetry analyzer (TG-DTA), ultraviolet-visible spectroscopy (UV–vis) absorption, and photoluminescence (PL) spectroscopy. According to XRD pattern analysis, the preparation alloys had a cubic crystalline structure and a complete solid solution formation. The average crystallite size for the 0.25at.% Zr concentration is found to be 7.79 nm and 11.8 nm for the 1 at.% Zr concentration. The TEM-dark field image confirms that the grain size is in the nanometric range (<100 nm). TEM-SAED spotty continuous ring pattern confirmed the complete solution formation is well correlated with the XRD results. The elemental distribution of the mechanically alloyed samples shows that Zr elements are homogeneously distributed in the Fe matrix. Bands at 3428 cm-1 in the FTIR spectrum have been linked to O–H stretching vibrations. CH2 and CH stretching vibrations were associated with peaks of about 2920 cm-1 and 2850 cm-1. The weight loss and gain changes were observed and represented in the TG-DST graph; we found that overall weight changes are + 10.7% (gain) at 1023oC for Fe 1-x-Zr x (x=0.25 at.%) alloy. The UV-visible absorbance edge revealed a blue shift when Zr was added, indicating alloy production. The energy band gap of materials was calculated using UV-vis, and it has been observed that the band gap reduces as Zr concentration increases. Zr was added to Fe1-x-Zrx alloy nanoparticles, resulting in 514 nm and 775 nm emission wavelengths. The higher PL emission peak was 514 nm at 0.25 at.% of Zr.

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Section: Introductionmentioning

confidence: 99%

Structural, thermal and optical characteristics of Fe _1−X Zr _X alloy by using mechanical milling approach: influence of Zr⁴⁺ ion

Illayaraja Muthaiyaa,

Parameshwaranpillai,

Krishnamoorthy

et al. 2024

Mater. Res. Express

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“…Gao and Liu [6,7] found that Ag elements have the effect of refining Fe dendrites and Fe fibres, reducing their segregation, and promoting precipitation, which greatly improves the alloy's strength and conductivity. Zhang [8] found that the Cu-Fe-Nb alloy contains nanocrystals, Nb precipitated phases, and Fe fibres, which help the alloy to achieve high strength, good electrical conductivity, and elongation at break. However, Ag and Nb are high-cost alloying elements, which are difficult to use on a large scale.…”

Section: Introductionmentioning

confidence: 99%

Influences of Sn on Fe phase segregation and properties of Cu-5Fe alloy

Luo

Wang

Yuan³

et al. 2023

Materials Science and Technology

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The Cu-5Fe-xSn alloy was prepared, and the effect of Sn on Fe phase distribution, precipitation kinetics, and properties of the Cu-5Fe alloy were investigated. The tensile strength and conductivity of Cu-5Fe-0.15Sn after aging at 400°C were 712 MPa and 66.6% IACS, respectively. Compared to the Cu-5Fe alloy, the tensile strength increased by about 190 MPa, while the conductivity decreased by only 1.4% IACS. Sn optimises Fe distribution and inhibits dendritic segregation. After drawing, the Fe phase is transformed into Fe fibre. Sn enhances the synergistic deformation ability of Cu/Fe, resulting in better continuity and density of Fe fibres. The precipitation activation energies of Fe in Cu-5Fe and Cu-5Fe-0.15Sn alloys were 95.9 and 84.9 kJ/mol, respectively. HIGHLIGHTS The addition of Sn significantly improves the mechanical properties of Cu-5Fe alloy. Sn addition optimised the primary Fe phase distribution and increased the Fe fibre density. The addition of Sn reduces the ultimate solid solubility of Fe in Cu and promotes the nucleation of γ-Fe phase. Sn reduces the activation energy of Fe phase and promotes the precipitation of Fe phase.

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“…They gained their original interest mainly due to their great combination of high electrical conductivity and good mechanical strength [1,2]. Recently, much attention has been paid to these alloys since the Cu-Fe system is used as a basis for new advanced multiphase alloys that have excellent mechanical properties [3][4][5]. The advantages of Cu and Fe elements are their easy availability and low price, good mechanical properties, and medium melting temperature.…”

Section: Introductionmentioning

confidence: 99%

Mechanical alloying of cufe immiscible alloy using different milling conditions

Adam

JAN

2022

METAL 2022 Conference Proeedings

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In the last years, immiscible alloys have gained significant attention, mainly due to the use of their immiscible nature for the preparation of new advanced multiphase alloys. Most of these alloys are based on the Cu-Fe system. The advantages of Cu and Fe elements are their easy availability and low price, good mechanical properties, and medium melting temperature. Currently, most bulk Cu-Fe-based immiscible alloys are produced by casting. However, this method requires several additional steps to obtain appropriate microstructure. An interesting alternative is powder metallurgy, which provides an easy way to produce immiscible alloys with very fine heterogeneous microstructure. An essential requirement is to prepare a milled powder with a sufficiently small particle size, which consists of a metastable solid solution of all elements. The small particle size allows achieving full density during sintering, in which supersaturated solid solution decomposes into a fine dual-phase microstructure.In this work, two sets of milling conditions ("soft" and "hard") for the preparation of CuFe powders were tested. They differed in the milling speed and the size of milling balls. The milled powders were analyzed after several milling times and the evolution of powder particle size, morphology, and microstructure were evaluated. Based on the results, optimal milling times were selected for both sets of milling conditions and these parameters were verified by the preparation of new CuFe milled powders. Surprisingly, different results were obtained as the resulting powder particle sizes were significantly larger.

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Microstructure and mechanical properties of a Cu-Fe-Nb alloy with a high product of the strength times the elongation

Cited by 26 publications

References 36 publications

Structural, thermal and optical characteristics of Fe _1−X Zr _X alloy by using mechanical milling approach: influence of Zr⁴⁺ ion

Structural, thermal and optical characteristics of Fe _1−X Zr _X alloy by using mechanical milling approach: influence of Zr⁴⁺ ion

Influences of Sn on Fe phase segregation and properties of Cu-5Fe alloy

Mechanical alloying of cufe immiscible alloy using different milling conditions

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Microstructure and mechanical properties of a Cu-Fe-Nb alloy with a high product of the strength times the elongation

Cited by 26 publications

References 36 publications

Structural, thermal and optical characteristics of Fe 1−X Zr X alloy by using mechanical milling approach: influence of Zr4+ ion

Structural, thermal and optical characteristics of Fe 1−X Zr X alloy by using mechanical milling approach: influence of Zr4+ ion

Influences of Sn on Fe phase segregation and properties of Cu-5Fe alloy

Mechanical alloying of cufe immiscible alloy using different milling conditions

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Product

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Structural, thermal and optical characteristics of Fe _1−X Zr _X alloy by using mechanical milling approach: influence of Zr⁴⁺ ion

Structural, thermal and optical characteristics of Fe _1−X Zr _X alloy by using mechanical milling approach: influence of Zr⁴⁺ ion