Composition and phase structure dependence of mechanical and magnetic properties for AlCoCuFeNi  high entropy alloys

Liu, Cong; Peng, Wei; Jiang, Changshuang; Guo, Hongjian; Tao, Jun; Deng, Xiaohua; Chen, Zhaoxia

doi:10.1016/j.jmst.2018.12.014

Cited by 81 publications

(28 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular, ΔR has a critical role in lattice distortion [27]. The decrease of ΔR suggests the decrease content of BCC phase [27]. Based on our XRD result and the decrease of the atomic size difference with increasing Ni addition, it may have a conclusion that the increase of Ni content tends to facilitate the formation of the FCC phase in FeCoNixCuAl (1.0 ≤ x ≤ 1.75) HEAs due to lattice distortion.…”

Section: Xrdmentioning

confidence: 65%

“…Liu et al used two magnetic parameters (the saturation magnetization, M s , and the coercivity, H c ) to study the DC magnetic properties of AlCoCuFeNi x (x = 0.5, 0.8, 1.0, 1.5, 2.0, 3.0). They found that high fraction of BCC phase led to high saturation magnetization [27]. Besides M s and H c , we used other important soft magnetic parameters including the initial permeability (µ i ), the maximum permeability (µ max ), the remanence (B r ), and the hysteresis loss (P u ) to evaluate DC soft magnetic properties of FeCoNi x CuAl (1.0 ≤ x ≤ 1.75) HEAs.…”

Section: Discussionmentioning

confidence: 99%

“…It is reported that the parameters including VEC, ΔR, ΔS and ΔH are key factors to determine the phase formation. In particular, ΔR has a critical role in lattice distortion [27]. The decrease of ΔR suggests the decrease content of BCC phase [27].…”

Section: Xrdmentioning

confidence: 99%

“…Zuo et al [26] showed that the CoNiMnGa HEAs had a high saturation magnetisation (M s ) of about 115.92 emu/g, and a low coercivity (H c ) of about 27.9 Oe. Liu et al [27] found that FeCoNi 1.5 CuAl HEA not only had good mechanical properties (maximum compressive strength σ max = 1725 MPa), but also good direct current (DC) soft magnetic properties (M s = 63.58 emu/g, H c = 13.7 Oe). These studies were basically conducted under DC magnetic conditions.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, it has larger electrical resistivity with 51.4 uΩ•cm than 40.8 uΩ•cm of non-oriented silicon electrical steel reported in reference [33], which indicates that FeCoNiCuAl HEA has potential AC applications by reducing the energy loss. (2) Recently, Liu et al [27] found that Ni addition could have obvious effects on the DC magnetic property and mechanical property of FeCoNiCuAl alloy. Here arises the question, does Ni addition have effects on AC soft magnetic properties of Fe-Co-Ni-Cu-Al HEAs?…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The AC Soft Magnetic Properties of FeCoNixCuAl (1.0 ≤ x ≤ 1.75) High-Entropy Alloys

Wang

Zhang

et al. 2019

Materials

View full text Add to dashboard Cite

High-entropy alloys (HEAs) with soft magnetic properties are one of the new candidate soft magnetic materials which are usually used under an alternating current (AC) magnetic field. In this work, the AC soft magnetic properties are investigated for FeCoNixCuAl (1.0 ≤ x ≤ 1.75) HEAs. The X-ray diffraction (XRD) and scanning electron microscope (SEM) show that the alloy consists of two phases, namely a face-centred cubic (FCC) phase and a body-centred cubic (BCC) phase. With increasing Ni content, the FCC phase content increased. Further research shows that the AC soft magnetic properties of these alloys are closely related to their phase constitution. Increasing the FCC phase content contributes to a decrease in the values of AC remanence (AC Br), AC coercivity (AC Hc) and AC total loss (Ps), while it is harmful to the AC maximum magnetic flux density (AC Bm). Ps can be divided into two parts: AC hysteresis loss (Ph) and eddy current loss (Pe). With increasing frequency f, the ratio of Ph/Ps decreases for all samples. When f ≤ 150 Hz, Ph/Ps > 70%, which means that Ph mainly contributes to Ps. When f ≥ 800 Hz, Ph/Ps < 40% (except for the x = 1.0 sample), which means that Pe mainly contributes to Ps. At the same frequency, the ratio of Ph/Ps decreases gradually with increasing FCC phase content. The values of Pe and Ph are mainly related to the electrical resistivity (ρ) and the AC Hc, respectively. This provides a direction to reduce Ps.

show abstract

Section: Xrdmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Xrdmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The AC Soft Magnetic Properties of FeCoNixCuAl (1.0 ≤ x ≤ 1.75) High-Entropy Alloys

Wang

Zhang

et al. 2019

Materials

View full text Add to dashboard Cite

show abstract

Fast and High‐Throughput Synthesis of Medium‐ and High‐Entropy Alloys Using Radio Frequency Inductively Coupled Plasma

et al. 2020

View full text Add to dashboard Cite

Multiprincipal element alloys, or medium-and high-entropy alloys (MEAs and HEAs), hold great potential for numerous structural and functional applications, yet the synthesis of such alloys out of a vast composition space is a daunting task. Herein, a radio frequency inductively coupled plasma (RF-ICP) method for preparing bulk MEAs and HEAs in a rapid and high-throughput fashion is reported. Typical MEAs and HEAs are successfully synthesized within 40 s per alloy, thereby greatly improving the fabrication efficiency and throughput. This method provides a new opportunity to accelerate the discovery of new complex alloys for a broad range of applications.

show abstract

Effect of Alloying Elements on the Microstructure and Magnetic Properties of Mechanically Alloyed AlNiCo‐Based High‐Entropy Alloys

Kulkarni,

Kaushik,

Murty

et al. 2024

Physica Status Solidi (b)

View full text Add to dashboard Cite

Herein, the effect of addition of Cu, Fe, and CuFe on microstructure and magnetic properties of equiatomic ternary AlNiCo alloy is reported. This addition of Cu, Fe, and CuFe to AlNiCo results in L12, B2, and mixed α + B2 phases, respectively, during the mechanical alloying (MA) and subsequent annealing process. The low‐temperature magnetic properties show that the addition of nonmagnetic Cu to AlNiCo enhances the coercivity, while Fe enhances the saturation magnetization value. Further from the study of magnetic properties, it is suggested that the phase segregation effects are minimum in MA process compared to melt process. It is also shown that the disorder plays a significant role in controlling the magnetic properties. The observed anomalous magnetic behavior is discussed in terms of modifications in exchange interactions between constituent elements due to chemical and structural disorder.

show abstract

Composition and phase structure dependence of mechanical and magnetic properties for AlCoCuFeNi high entropy alloys

Cited by 81 publications

References 34 publications

The AC Soft Magnetic Properties of FeCoNixCuAl (1.0 ≤ x ≤ 1.75) High-Entropy Alloys

The AC Soft Magnetic Properties of FeCoNixCuAl (1.0 ≤ x ≤ 1.75) High-Entropy Alloys

Fast and High‐Throughput Synthesis of Medium‐ and High‐Entropy Alloys Using Radio Frequency Inductively Coupled Plasma

Effect of Alloying Elements on the Microstructure and Magnetic Properties of Mechanically Alloyed AlNiCo‐Based High‐Entropy Alloys

Contact Info

Product

Resources

About