Effect of Al on Structural and Magnetic Characteristics of CoCrFeNiMnAlx High Entropy Alloys
(주)코리아스칼라
- 최초 등록일
- 2023.07.03
- 최종 저작일
- 2023.03
- 6페이지/ 어도비 PDF
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서지정보
ㆍ발행기관 : 한국재료학회
ㆍ수록지정보 : 한국재료학회지 / 33권 / 3호
ㆍ저자명 : Majid Tavoosi, Ali Ghasemi, Gholam Reza Gordani, Mohammad Reza Loghman Estarki
목차
Abstract
1. Introduction
2. Experimental Procedure
3. Results and Discussion
4. Conclusion
References
Author Information
영어 초록
This research examines the effect of adding aluminum on the structural, phasic, and magnetic properties of CoCrFe NiMnAlx high-entropy alloys. To this aim, the arc-melt process was used under an argon atmosphere for preparing cast samples. The phasic, structural, and magnetic properties of the samples were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), and vibrational magnetometry (VSM) analyses. Based on the results, the addition of aluminum to the compound caused changes in the crystalline structure, from FCC solid solution in the CoCrFeNiMn sample to CoCrFeNiMnAl BBC solid solution. It was associated with changes in the magnetic property of CoCrFeNiMnAlx high-entropy alloys, from paramagnetic to ferromagnetic. The maximum saturation magnetization for the CoCrFeNiMnAl casting sample was estimated to be around 79 emu/g. Despite the phase stability of the FCC solid solution with temperature, the solid solution phase formed in the CrCrFeNiMnAl high-entropy compound was not stable, and changed into FCC solid solution with temperature elevation, causing a reduction in saturation magnetization to about 7 emu/g.
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