Research and Application of Materials Science

Co47.5Fe28.•5Ni19Si3.3Al1.7 High-entropy Skeletons Fabricated by Selective Laser Melting and Properties tuned by pressure infiltration of Al

WUYaqi, CAIYongsen, HAOJinpeng, GENGGuihong, ZHANGYong

Abstract


High saturation magnetization and low coercivity are required for soft magnetic materials. This study investigated the Co47.5Fe28.5Ni19Si3.3Al1.7 high-entropy soft magnetic skeleton was prepared by selective laser melting. Then Al was pressure infiltrated into skeletons to obtain a dense composite material. The high-entropy composite materials possessed favorable compressive ductility and moderate soft magnetic properties. The high-entropy composite materials were obtained with Ms being 97.1 emu/g, 79.8 emu/g, 33 emu/g and possessing 19 Oe, 15.8Oe and 17Oe of Hc, respectively. However, the magnetostriction coefficient remains low level, about 5ppm. These reported properties are attributed to the special structure of the material studied in present experiment. Nevertheless, a novel strategy of structural designing was proposed in this paper.

Keywords


High entropy alloy，Composite material，Selective laser melting，gas pressure infiltration，Soft Magnetic Properties

Full Text:

PDF

References


Zhang Y, Amorphous and High entropy alloys. China SciencePublishing & Media Ltd; 2010(1):125-130.

Beke D L, Erdélyi G. On the diffusion in High entropy alloys[J]. Materials Letters 2016(164): 111-113.

Gao M C, Liaw P K, Yeh J W, et al.. High entropy alloys:Fundamentals and applications [J]. 2016(1), 210-221.

Gao M C, Miracle D B, Maurice D, et al.. High-entropyfunctional materials. Journal of Materials Research 2018,33(19): 3138-3155.

Xue H Y, Jin S L, Wei R Z, et al.. A Brief Review ofHigh-Entropy Films [J]. Journal of Materials Chemistry andPhysics, 2017(1): 210.

Yeh J W, Chen S K, Lin S J, et al.. Nanostructured Highentropy alloys with Multiple Principal Elements: NovelAlloy Design Concepts and Outcomes. AdvancedEngineering Materials 2004, 6(5): 299-303.

Herzer G. Modern soft magnets: Amorphous andnanocrystalline materials. Acta Materialia 2013, 61(3):718-734.

Zhang Y, Zhang M, Li D Y, et al.. Metals CompositionalDesign of Soft Magnetic High Entropy Alloys by MinimizingMagnetostriction Coefficient in (Fe0.3Co0.5Ni0.2)100 −x(Al1/3Si2/3)x System [J]. 2019, 9(3):5-6.

D. Herzog, V. Seyda, E. Wycisk, et al.. Additivemanufacturing of metals [J]. Acta Mater, 2016(117):371-392.

S. Chen, Y. Tong, P. Liaw, Additive manufacturing ofhigh-entropy alloys: A review [J]. Entropy, 2018, 20(12):937.

H. Dobbelstein, E.L. Gurevich, E.P. George, et al.. Lasermetal deposition of compositionally graded TiZrNbTa refractory high-entropy alloys using elemental powderblends [J]. Addit. Manuf, 2019(25):252-262.

L C Huang, Y N Sun, A. Abdukadir, et al.. Microstructureand mechanical properties of AlxCoCrFeNi High entropyalloys deposited by laser melting [J]. Vaccum,2021(183):109875.

Wang S, Liu Y D, Qi B, et al.. Study on the forming processand performance of 316L large layer thickness by selectivelaser melting [J]. Applied Laser, 2017, 37(6):7.

Wang Z K, Zheng Q G, Wang T, et al.. Coagulation tissuefeature formation process of laser surface cladding layer [J].Laser technology 2000(1):66-68.

T. Borkar, B. Gwalani, D. Choudhuri, et al.. A combinatorialassessment of AlxCrCuFeNi2 (0 ＜ x ＜ 1.5) complexconcentrated alloys: microstructure, microhardness, andmagnetic properties [J]. Acta Mater,2016(6):63-76.

T. Borkar, V. Chaudhary, B. Gwalani, et al.. A combinatorialapproach for assessing the magnetic properties of highentropy alloys: role of Cr in AlCoxCr1-xFeNi (0＜x＜1.5) [J].Adv. Eng. Mater, 2017, 19 (8):1700048.

Carter L N, Withers P J, Martin C. The influence of thelaser scan strategy on grain structure and crackingbehaviour in SLM powder-bed fabricated nickel superalloy[J]. Journal of Alloys and Compounds, 2014(615):338-347.

Y.Y. Chen, H. Yue, X.P. Wang. Microstructure, texture andtensile property as a function of scanning speed ofTi47Al2Cr2Nb alloy fabricated by selective electron beammelting [J]. Mater. Sci. Eng. A, 2018(713):195-205.

S.J. Wolff, S. Lin, E.J. Faierson, et al.. A framework to linklocalized cooling and properties of directed energydeposition (DED)-processed Ti-6Al-4V [J]. Acta Mater.2017(132): 106-17.

L. Lan, W. Wang, Z. Cui, et al.. Anisotropy study of themicrostructure and properties of AlCoCrFeNi2.1 eutectichigh entropy alloy additively manufactured by selectivelaser melting[J]. J. Mater. Sci. Technol., 2022(129):229-239.

Huang B, Yang Y, Wang A D, et al.. Saturated magnetizationand glass forming ability of soft magnetic Fe-based metallicglasses [J]. Intermetallics 2017(84):74-81.

Zhang Y, Zuo T T, Cheng Y Q, et al.. High entropy alloyswith High Saturation Magnetization[J]. Electrical Resistivity,and Malleability. Scientific Reports 2013(3):1455.

J.H. Li, X.X. Gao, X.M. Xiao, et al.. M.-C. Zhang,Magnetostriction of ＜100＞ oriented Fe-Ga rods withlarge diameter [J]. Rare Met, 2015, 34 (7):472-476.

Y. Zhang, P. Sun, J. Gou, et al.. Depth-dependentdecomposition and property of large magneto-strictionFe-Ga alloys [J]. Appl. Surf. Sci, 2021(569):151059.

G.D. Liu, X.F. Dai, Z.H. Liu, et al.. Structure,magnetostriction, and magnetic properties of melt-spunFe-Ga alloys [J]. J. Appl. Phys, 2016, 99 (9):093904.

A.A. Emdadi, S.H. Nedjad, H.B. Ghavifekr. Effect ofsolidification texture on the magnetostrictive behavior ofgalfenol [J]. Metall. Mater. Trans. A, 2014, 45 (2): 906-910




DOI: https://doi.org/10.33142/rams.v4i2.8467

Refbacks

  • There are currently no refbacks.


Copyright (c) 2023 Yaqi WU, Yongsen CAI, Jinpeng HAO, Guihong GENG, Yong ZHANG

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.