Enhanced Soft Magnetic Properties of CoNi-Based High Entropy Alloys

被引：20

作者：

Ghasemi, A. ^{[1
]}

Zamani, Kh. ^{[1
]}

Tavoosi, M. ^{[1
]}

Gordani, Gh. R. ^{[1
]}

机构：

[1] Malek Ashtar Univ Technol, Dept Mat Engn, Shahr, Iran

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2020年 / 33卷 / 10期

关键词：

High entropy alloy; Soft magnet; Annealing; Magnetic properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE; NI; BEHAVIOR; DESIGN; AL;

D O I：

10.1007/s10948-020-05579-y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High entropy alloys (HEA) based on CoNi systems contain of Mn, Cr, and Al elements were prepared through mechanical alloying and subsequent annealing method. The structural and magnetic properties of CoNi alloy system were discussed based on the results of X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM) analysis methods. There were different chemical compounds formed in CoNi-Mn-Cr samples, while a simple solid solution phase with FCC or BCC structural evolved in CoNiMnCrAl high entropy alloy after mechanical milling and subsequent annealing process at 750 and 900 degrees C. This sample exhibited excellent soft magnetic properties with the saturation magnetization and coercivity of about 31 emu/g and 39 Oe, respectively, after annealing at 750 degrees C. Annealing at 900 degrees C could improve soft magnetic properties of CoNiMnCrAl high entropy alloy in the range of 58 emu/g for saturation of magnetization and 18 Oe for coercivity due to the formation of a single solid solution phase with BCC structure.

引用

页码：3189 / 3196

页数：8

共 25 条

[1]

Avner S.H., 1974, INTRO PHYS METALLURG

[2]

Cantor B, 2014, HIGH-ENTROPY ALLOYS, P1

[3] Alloying behavior, microstructure and mechanical properties in a FeNiCrCo0.3Al0.7 high entropy alloy [J].

Chen, Weiping ;

Fu, Zhiqiang ;

Fang, Sicong ;

Xiao, Huaqiang ;

Zhu, Dezhi .

MATERIALS & DESIGN, 2013, 51 :854-860

[4] On the influence of Mn on the phase stability of the CrMnxFeCoNi high entropy alloys [J].

Christofidou, K. A. ;

Pickering, E. J. ;

Orsatti, P. ;

Mignanelli, P. M. ;

Slater, T. J. A. ;

Stone, H. J. ;

Jones, N. G. .

INTERMETALLICS, 2018, 92 :84-92

[5]

De Graef M., 2012, STRUCTURE MAT INTRO, V2nd ed.

[6] Synthesis and characterization of sub-micron size Co-Ni alloys using malonate as precursor [J].

Elumalai, P ;

Vasan, HN ;

Verelst, M ;

Lecante, P ;

Carles, V ;

Tailhades, P .

MATERIALS RESEARCH BULLETIN, 2002, 37 (02) :353-363

[7] Microstructure and mechanical properties of twinned Al0.5CrFeNiCo0.3C0.2 high entropy alloy processed by mechanical alloying and spark plasma sintering [J].

Fang, Sicong ;

Chen, Weiping ;

Fu, Zhiqiang .

MATERIALS & DESIGN, 2014, 54 :973-979

[8] Structure and magnetic properties of nanocrystalline Co-Ni and Co-Fe mechanically alloyed [J].

Fenineche, NE ;

Hamzaoui, R ;

El Kedim, O .

MATERIALS LETTERS, 2003, 57 (26-27) :4165-4169

[9]

Gao M. C., 2016, HIGH ENTROPY ALLOYS

[10] Electrical, magnetic, and Hall properties of AlxCoCrFeNi high-entropy alloys [J].

Kao, Yih-Farn ;

Chen, Swe-Kai ;

Chen, Ting-Jie ;

Chu, Po-Chou ;

Yeh, Jien-Wei ;

Lin, Su-Jien .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (05) :1607-1614

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