Effect of Loading Rate on Dynamic Fracture Morphology of a Zr-Based Bulk Metallic Glass

被引：2

作者：

Khanolkar, Gauri R. ^{[1
]}

Haghighat, Shima ^{[1
]}

Hodge, Andrea M. ^{[1
]}

Flores, Katharine M. ^{[2
]}

Eliasson, Veronica ^{[1
]}

机构：

[1] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA

[2] Washington Univ, Dept Mech Engn & Mat Sci, St Louis, MO 63130 USA

来源：

MATERIALS TRANSACTIONS | 2015年 / 56卷 / 06期

关键词：

bulk metallic glass (BMG); impact experiment; scanning electron microscopy (SEM); STRAIN-RATE; DEFORMATION-BEHAVIOR; COMPRESSIVE BEHAVIOR; SURFACE-MORPHOLOGY; STRENGTH; FAILURE;

D O I：

10.2320/matertrans.M2014467

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low-velocity plate impact experiments using a single-stage gas-gun are performed on Zr58.5Cu15.6Ni12.8Al10.3Nb2.8. Compressive fracture surfaces of the samples subjected to varying impact velocities and stress amplitudes are evaluated in order to study their loading rate dependence. Samples impacted at increasing loading rates, from increasing velocities of impact, show a larger extent of localized melting while those subjected to increasing stress show a transition from ductile to brittle fracture. These observations suggest that the mechanisms and morphology of fracture are strain-rate dependent.

引用

页码：840 / 843

页数：4

共 33 条

[11] Superplastic deformation of Zr65Al10Ni10Cu15 metallic glass [J].

Kawamura, Y ;

Shibata, T ;

Inoue, A ;

Masumoto, T .

SCRIPTA MATERIALIA, 1997, 37 (04) :431-436

[12] Fracture surface morphology of compressed bulk metallic glass-matrix-composites and bulk metallic glass [J].

Kusy, M. ;

Kuehn, U. ;

Concustell, A. ;

Gebert, A. ;

Das, J. ;

Eckert, J. ;

Schultz, L. ;

Baro, M. D. .

INTERMETALLICS, 2006, 14 (8-9) :982-986

[13] Negative strain rate sensitivity and compositional dependence of fracture strength in Zr/Hf based bulk metallic glasses [J].

Li, H ;

Subhash, G ;

Gao, XL ;

Kecskes, LJ ;

Dowding, RJ .

SCRIPTA MATERIALIA, 2003, 49 (11) :1087-1092

[14] Fracture surface morphology of Mg-based bulk metallic glass and composite during quasi-static and dynamic compressive deformation [J].

Li, J. Q. ;

Wang, L. ;

Cheng, H. W. ;

Zhang, H. F. ;

Hu, Z. Q. ;

Cai, H. N. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 478 (1-2) :827-830

[15] Initiation and propagation of shear bands in Zr-based bulk metallic glass under quasi-static and dynamic shear loadings [J].

Liu, LF ;

Dai, LH ;

Bai, YL ;

Wei, BC .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2005, 351 (40-42) :3259-3270

[16] Strain rate-dependent compressive deformation behavior of Nd-based bulk metallic glass [J].

Liu, LF ;

Dai, LH ;

Bai, YL ;

Wei, BC ;

Yu, GS .

INTERMETALLICS, 2005, 13 (08) :827-832

[17] The failure stress of bulk metallic glasses under very high strain rate [J].

Liu, Wei-Dong ;

Liu, Kai-Xin ;

Xia, Xing-Xiang ;

Wang, Wei-Hua .

JOURNAL OF MATERIALS RESEARCH, 2010, 25 (07) :1230-1234

[18] Deformation behavior of the Zr41.2Ti13.8CU12.5Ni10Be22.5 bulk metallic glass over a wide range of strain-rates and temperatures [J].

Lu, J ;

Ravichandran, G ;

Johnson, WL .

ACTA MATERIALIA, 2003, 51 (12) :3429-3443

[19] Deformation annul fracture behaviors of Pd-Cu-Ni-P glassy alloys [J].

Ma, CL ;

Inoue, A .

MATERIALS TRANSACTIONS, 2002, 43 (12) :3266-3272

[20] Dynamic fracture instability of tough bulk metallic glass [J].

Meng, J. X. ;

Ling, Z. ;

Jiang, M. Q. ;

Zhang, H. S. ;

Dai, L. H. .

APPLIED PHYSICS LETTERS, 2008, 92 (17)

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