Enhanced mechanical properties due to structural changes induced by devitrification in Fe-Co-B-Si-Nb bulk metallic glass

被引：93

作者：

Fornell, J. ^{[1
]}

Gonzalez, S. ^{[2
]}

Rossinyol, E. ^{[3
]}

Surinach, S. ^{[1
]}

Baro, M. D. ^{[1
]}

Louzguine-Luzgin, D. V. ^{[2
]}

Perepezko, J. H. ^{[4
]}

Sort, J. ^{[1
,5
]}

Inoue, A. ^{[2
]}

机构：

[1] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain

[2] Tohoku Univ, WPI Advaced Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Univ Autonoma Barcelona, Serv Microscopia, Bellaterra 08193, Spain

[4] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA

[5] Univ Autonoma Barcelona, Inst Catalana Recerca & Estudis Avancats, Bellaterra 08193, Spain

来源：

ACTA MATERIALIA | 2010年 / 58卷 / 19期

关键词：

Metallic glass; Annealing; Nanoindentation; Transmission electron microscopy; Acoustic methods; SOFT-MAGNETIC PROPERTIES; STRAIN GRADIENT PLASTICITY; NANOCRYSTALLINE MATERIALS; CRYSTALLIZATION BEHAVIOR; INTRINSIC PLASTICITY; SUPERHIGH STRENGTH; TRANSVERSE PHONONS; CURIE-TEMPERATURE; ROOM-TEMPERATURE; AMORPHOUS ALLOY;

D O I：

10.1016/j.actamat.2010.07.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe(36)Co(36)B(19.2)Si(4.8)Nb(4) bulk glassy rods were synthesized by copper mould casting. The effects of annealing treatments on the microstructure, elastic and mechanical properties of this alloy are investigated. Annealing below the glass transition temperature induces the formation of atomic clusters with pseudo-tenfold symmetry with a close relationship to the Fe(23)B(6) phase. Annealing at sufficiently high temperatures promotes the formation of stable Fe(2)B and FeB phases and Fe(Co) solid solution. The as-cast alloy exhibits ultra-high hardness (H > 14 GPa), high reduced Young's modulus (E(r) > 200 GPa) and good wear resistance. These properties are further enhanced after thermal treatments (H > 18 GPa and E(r) > 260 GPa are achieved in the fully crystallized sample). The mechanical hardening is accompanied with an increase of the elastic recovery and a decrease of the Poisson's ratio. The different microstructural mechanisms responsible for these annealing-induced changes in mechanical and elastic properties are discussed. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6256 / 6266

页数：11

共 64 条

[31] Cohesive energy, local magnetic properties, and Curie temperature of Fe3B studied using the self-consistent LMTO method
Kong, Y
Li, FS
[J]. PHYSICAL REVIEW B, 1997, 56 (06): : 3153 - 3158
[32] KULGE MD, 1990, J APPL PHYS, V67, P2370
[33] Intrinsic plasticity or brittleness of metallic glasses
Lewandowski, JJ
Wang, WH
Greer, AL
[J]. PHILOSOPHICAL MAGAZINE LETTERS, 2005, 85 (02) : 77 - 87
[34] On the significance of the H/E ratio in wear control:: a nanocomposite coating approach to optimised tribological behaviour
Leyland, A
Matthews, A
[J]. WEAR, 2000, 246 (1-2) : 1 - 11
[35] THE FRICTIONAL COMPONENT OF THE INDENTATION SIZE EFFECT IN LOW LOAD MICROHARDNESS TESTING
LI, H
GHOSH, A
HAN, YH
BRADT, RC
[J]. JOURNAL OF MATERIALS RESEARCH, 1993, 8 (05) : 1028 - 1032
[36] Effect of minor Cu addition on phase evolution and magnetic properties of {[(Fe0.5Co0.5)0.75Si0.05B0.20]0.96Nb0.04}100-xCux alloys
Li, R.
Stoica, M.
Eckert, J.
[J]. 13TH INTERNATIONAL CONFERENCE ON RAPIDLY QUENCHED AND METASTABLE MATERIALS, 2009, 144
[37] Crystallization and magnetic properties of [(Fe,Co)0.75Si0.05B0.20]94Nb6 metallic glasses
Li, R.
Kumar, S.
Ram, S.
Stoica, M.
Roth, S.
Eckert, J.
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (08)
[38] Lund AC, 2004, MATER RES SOC SYMP P, V806, P313
[39] Electronic structure, exchange interactions, and Curie temperature of FeCo
MacLaren, JM
Schulthess, TC
Butler, WH
Sutton, R
McHenry, M
[J]. JOURNAL OF APPLIED PHYSICS, 1999, 85 (08) : 4833 - 4835
[40] Structure and magnetic properties of amorphous and nanocrystalline Fe40Co40Cu0.5Zr9Al2Si4B4.5 alloys
Mitra, A
Kim, HY
Louzguine, DV
Nishiyama, N
Shen, B
Inoue, A
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 278 (03) : 299 - 305

← 1 2 3 4 5 6 7 →