Significant tensile ductility induced by cold rolling in Cu47.5Zr47.5Al5 bulk metallic glass

被引：87

作者：

Song, K. K. ^{[1
,2
]}

Pauly, S. ^{[1
]}

Zhang, Y. ^{[1
]}

Scudino, S. ^{[1
]}

Gargarella, P. ^{[1
]}

Surreddi, K. B. ^{[1
]}

Kuehn, U. ^{[1
]}

Eckert, J. ^{[1
,2
]}

机构：

[1] IFW Dresden, Inst Komplexe Mat, D-01069 Dresden, Germany

[2] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany

来源：

INTERMETALLICS | 2011年 / 19卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Ternary alloy systems; Glasses; metallic; Mechanical properties at ambient temperature; Rolling; POTENTIAL-ENERGY LANDSCAPE; MECHANICAL-PROPERTIES; SUPERCOOLED LIQUID; AMORPHOUS-ALLOYS; SHEAR BANDS; PLASTICITY; COMPOSITES; STRENGTH; STRESS;

D O I：

10.1016/j.intermet.2011.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Significant tensile plasticity up to 0.7 +/- 0.1% together with work-hardening and larger fracture strength was obtained in Cu(47.5)Zr4(7.5)Al(5) bulk metallic glass (BMG) upon cold rolling with only 2.9 +/- 0.3% thickness reduction. The good deformability could be attributed to the multiple pre-existing shear bands and structural inhomogeneity induced by rolling. The distributions of shear bands upon rolling can be predicted by a simplified rolling model. The underlying mechanism for the tensile plasticity was further discussed in the frame of potential energy landscape theory (PEL). (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1394 / 1398

页数：5

共 38 条

[1] PLASTIC-DEFORMATION IN METALLIC GLASSES [J].

ARGON, AS .

ACTA METALLURGICA, 1979, 27 (01) :47-58

[2] Softening caused by profuse shear banding in a bulk metallic glass [J].

Bei, H ;

Xie, S ;

George, EP .

PHYSICAL REVIEW LETTERS, 2006, 96 (10)

[3] QUASI-STATIC CONSTITUTIVE BEHAVIOR OF ZR41.25TI13.75NI10CU12.5BE22.5 BULK AMORPHOUS-ALLOYS [J].

BRUCK, HA ;

CHRISTMAN, T ;

ROSAKIS, AJ ;

JOHNSON, WL .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (04) :429-434

[4]

Bruning R., 1996, Journal of Non-Crystalline Solids, V205-207, P480, DOI [10.1016/S0022-3093(96)00264-5, DOI 10.1016/S0022-3093(96)00264-5]

[5] Effect of pre-existing shear bands on the tensile mechanical properties of a bulk metallic glass [J].

Cao, Q. P. ;

Liu, J. W. ;

Yang, K. J. ;

Xu, F. ;

Yao, Z. Q. ;

Minkow, A. ;

Fecht, H. J. ;

Ivanisenko, J. ;

Chen, L. Y. ;

Wang, X. D. ;

Qu, S. X. ;

Jiang, J. Z. .

ACTA MATERIALIA, 2010, 58 (04) :1276-1292

[6] Work-hardenable ductile bulk metallic glass [J].

Das, J ;

Tang, MB ;

Kim, KB ;

Theissmann, R ;

Baier, F ;

Wang, WH ;

Eckert, J .

PHYSICAL REVIEW LETTERS, 2005, 94 (20)

[7] Structural rejuvenation in a bulk metallic glass induced by severe plastic deformation [J].

Dmowski, W. ;

Yokoyama, Y. ;

Chuang, A. ;

Ren, Y. ;

Umemoto, M. ;

Tsuchiya, K. ;

Inoue, A. ;

Egami, T. .

ACTA MATERIALIA, 2010, 58 (02) :429-438

[8] Mechanical properties of bulk metallic glasses and composites [J].

Eckert, J. ;

Das, J. ;

Pauly, S. ;

Duhamel, C. .

JOURNAL OF MATERIALS RESEARCH, 2007, 22 (02) :285-301

[9]

GREER AL, 1995, SCIENCE, V267, P267

[10] Critical Poisson's ratio for plasticity in Fe-Mo-C-B-Ln bulk amorphous steel [J].

Gu, X. J. ;

McDermott, A. G. ;

Poon, S. Joseph ;

Shiflet, Gary J. .

APPLIED PHYSICS LETTERS, 2006, 88 (21)

← 1 2 3 4 →