In situ Formation of Amorphous-Core/Crystalline-Shell Composite Powder in Liquid Immiscible Fe-Si-B-Cu System

被引：0

作者：

Liu Xingjun ^{[1
,2
,3
]}

Zhu Jiahua ^{[1
,2
]}

Yu Yan ^{[1
,2
]}

Zhang Jinbin ^{[1
,2
]}

Yang Shuiyuan ^{[1
,2
]}

Wang Cuiping ^{[1
,2
]}

机构：

[1] Xiamen Univ, Coll Mat, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Fujian Prov Key Lab Mat Genome, Xiamen 361005, Peoples R China

[3] Harbin Inst Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2020年 / 49卷 / 01期

基金：

中国国家自然科学基金;

关键词：

amorphous alloy; CALPHAD approach; microstructures; liquid phase separation; composites; BULK METALLIC GLASSES; MATRIX COMPOSITES; PHASE-SEPARATION; FORMING ABILITY; PLASTICITY; MICROSTRUCTURE; BEHAVIOR; ALLOYS; ENHANCEMENT; DESIGN;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on the CALPHAD (Calculated of Phase Diagrams) approach, micro-scale amorphous/crystalline composite powders of (Fe0.75Si0.1B0.15)(100-x)Cu-x(x = 30, 45, 55, 65, at%) with core/shell microstructure were designed and successfully fabricated by using the gas atomization method. The obtained gas-atomized powder exhibits a Fe-Si-B-rich amorphous-core/Cu-rich crystalline-shell composite microstructure. Results indicate that the coercive force of the composite powders is almost the same as that of Fe75Si10B15 amorphous powder, but their saturation magnetization decreases with increasing Cu concentration. The formation mechanism of such amorphous-core/crystalline-shell composite powders is originated from the occurrence of liquid phase separation at high temperature and the different glass-forming ability (GFA) of the two separated liquids (Cu-rich and FeSiB-rich) during the rapid solidification process.

引用

页码：109 / 115

页数：7

共 32 条

[1] Aversa R., 2017, AM J APPL SCI, V14, P294, DOI DOI 10.3844/AJASSP.2017.294.301
[2] Improved mechanical behavior of Cu-Ti-based bulk metallic glass by in situ formation of nanoscale precipitates
Calin, M
Eckert, J
Schultz, L
[J]. SCRIPTA MATERIALIA, 2003, 48 (06) : 653 - 658
[3] Dynamic deformation behavior of tungsten-fiber/metallic-glass matrix composites
Conner, RD
Dandliker, RB
Scruggs, V
Johnson, WL
[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2000, 24 (05) : 435 - 444
[4] Co content effect on elastic strain limit in ZrCuNiAlCo bulk metallic glasses
Dong, Y.
Wunderlich, R.
Biskupek, J.
Cao, Q. P.
Wang, X. D.
Zhang, D. X.
Jiang, J. Z.
Fecht, H. -J.
[J]. SCRIPTA MATERIALIA, 2017, 137 : 94 - 99
[5] Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions
Hays, CC
Kim, CP
Johnson, WL
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (13) : 2901 - 2904
[6] A bridge from monotectic alloys to liquid-phase-separated bulk metallic glasses: Design, microstructure and phase evolution
He, J.
Mattem, N.
Tan, J.
Zhao, J. Z.
Kaban, I.
Wang, Z.
Ratke, L.
Kim, D. H.
Kim, W. T.
Eckert, J.
[J]. ACTA MATERIALIA, 2013, 61 (06) : 2102 - 2112
[7] Local microstructure evolution at shear bands in metallic glasses with nanoscale phase separation
He, Jie
Kaban, Ivan
Mattern, Norbert
Song, Kaikai
Sun, Baoan
Zhao, Jiuzhou
Kim, Do Hyang
Eckert, Juergen
Greer, A. Lindsay
[J]. SCIENTIFIC REPORTS, 2016, 6
[8] Designing metallic glass matrix composites with high toughness and tensile ductility
Hofmann, Douglas C.
Suh, Jin-Yoo
Wiest, Aaron
Duan, Gang
Lind, Mary-Laura
Demetriou, Marios D.
Johnson, William L.
[J]. NATURE, 2008, 451 (7182) : 1085 - U3
[9] Fe- and Co-based bulk glassy alloys with ultrahigh strength of over 4000 MPa
Inoue, A.
Shen, B. L.
Chang, C. T.
[J]. INTERMETALLICS, 2006, 14 (8-9) : 936 - 944
[10] Phase separation in metallic glasses
Kim, D. H.
Kim, W. T.
Park, E. S.
Mattern, N.
Eckert, J.
[J]. PROGRESS IN MATERIALS SCIENCE, 2013, 58 (08) : 1103 - 1172

← 1 2 3 4 →