Novel high entropy alloys of FexCo1-xNiMnGa with excellent soft magnetic properties

2018 ◽  
Vol 100 ◽  
pp. 1-8 ◽  
Author(s):  
Tingting Zuo ◽  
Min Zhang ◽  
Peter K. Liaw ◽  
Yong Zhang
Keyword(s):  
Magnetic Properties ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy

Effect of grain and phase boundaries on soft magnetic properties of FeCoNiAlSi high-entropy alloys

2021 ◽  
pp. 129965
Author(s):  
Zhong Li ◽  
Jianing Qi ◽  
Zhuangzhuang Li ◽  
Hongxia Li ◽  
Hui Xu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Phase Boundaries ◽  
High Entropy

scholarly journals Effects of La on Thermal Stability, Phase Formation and Magnetic Properties of Fe–Co–Ni–Si–B–La High Entropy Alloys

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1907
Author(s):  
Jiaming Li ◽  
Jianliang Zuo ◽  
Hongya Yu
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Phase Formation ◽  
Crystallization Temperature ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy ◽  
Bcc Phase

The microstructure, phase formation, thermal stability and soft magnetic properties of melt-spun high entropy alloys (HEAs) Fe27Co27Ni27Si10−xB9Lax with various La substitutions for Si (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) were investigated in this work. The Fe27Co27Ni27Si10−xB9La0.6 alloy shows superior soft magnetic properties with low coercivity Hc of ~7.1 A/m and high saturation magnetization Bs of 1.07 T. The content of La has an important effect on the primary crystallization temperature (Tx1) and the secondary crystallization temperature (Tx2) of the alloys. After annealing at relatively low temperature, the saturation magnetization of the alloy increases and the microstructure with a small amount of body-centered cubic (BCC) phase embedded in amorphous matrix is observed. Increasing the annealing temperature reduces the magnetization due to the transformation of BCC phase into face-centered cubic (FCC) phase.

Effects of phase composition and elemental partitioning on soft magnetic properties of AlFeCoCrMn high entropy alloys

2019 ◽  
Vol 171 ◽  
pp. 31-39 ◽  
Author(s):  
Chanwon Jung ◽  
Ku Kang ◽  
Amalraj Marshal ◽  
Konda Gokuldoss Pradeep ◽  
Jae-Bok Seol ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Phase Composition ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy

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

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4222 ◽  
Author(s):  
Zhongyuan Wu ◽  
Chenxu Wang ◽  
Yin Zhang ◽  
Xiaomeng Feng ◽  
Yong Gu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Soft Magnetic Materials ◽  
Magnetic Flux Density ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Phase Content ◽  
Soft Magnetic ◽  
High Entropy ◽  
Two Phases ◽  
Fcc Phase

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.

Enhanced Soft Magnetic Properties of CoNi-Based High Entropy Alloys

2020 ◽  
Vol 33 (10) ◽  
pp. 3189-3196
Author(s):  
A. Ghasemi ◽  
Kh. Zamani ◽  
M. Tavoosi ◽  
Gh.R. Gordani
Keyword(s):  
Magnetic Properties ◽  
High Entropy Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy

CoCrxCuFeMnNi high-entropy alloy powders with superior soft magnetic properties

2019 ◽  
Vol 491 ◽  
pp. 165574 ◽  
Author(s):  
Rui-Feng Zhao ◽  
Bo Ren ◽  
Guo-Peng Zhang ◽  
Zhong-Xia Liu ◽  
Bin Cai ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Entropy Alloy ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy

scholarly journals Soft Magnetic Properties of High-Entropy Fe-Co-Ni-Cr-Al-Si Thin Films

Entropy ◽  
2016 ◽  
Vol 18 (8) ◽  
pp. 308 ◽  
Author(s):  
Pei-Chung Lin ◽  
Chun-Yang Cheng ◽  
Jien-Wei Yeh ◽  
Tsung-Shune Chin
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy

Influence of heat treatment on microstructure, mechanical behavior, and soft magnetic properties in an fcc-based Fe29Co28Ni29Cu7Ti7 high-entropy alloy

2018 ◽  
Vol 33 (15) ◽  
pp. 2214-2222 ◽  
Author(s):  
Zhiqiang Fu ◽  
Benjamin E. MacDonald ◽  
Todd C. Monson ◽  
Baolong Zheng ◽  
Weiping Chen ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Mechanical Behavior ◽  
High Entropy Alloy ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
High Entropy ◽  
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