Temperature rise and flow of Zr-based bulk metallic glasses under high shearing stress

被引：6

作者：

Zhang WeiGuo ^{[1
,2
]}

Ma MingZhen ^{[1
]}

Song AiJun ^{[1
,2
]}

Liang ShunXing ^{[1
]}

Hao QiuHong ^{[1
]}

Tan ChunLin ^{[1
]}

Jing Qin ^{[1
]}

Liu RiPing ^{[1
]}

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

[2] Hebei Normal Univ Sci & Technol, Phys Chem Coll, Qinhuangdao 066004, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2011年 / 54卷 / 11期

基金：

中国国家自然科学基金;

关键词：

deformation; shear bands; temperature rise; metallic glasses; AMORPHOUS-ALLOYS; MECHANICAL-PROPERTIES; FRACTURE; BANDS; DEFORMATION; COMPOSITES; PLASTICITY; MICROSTRUCTURE; BEHAVIOR;

D O I：

10.1007/s11433-011-4489-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Deformation of the bulk metallic glasses (BMGs) and the creation and propagation of the shear bands are closely interconnected. Shearing force was loaded on Zr(41.2)Ti(13.8)Cu(12.5)Ni(10.0)Be(22.5)(Vit. 1) BMGs by cutting during the turning of the BMG rod. The temperature rise of alloy on the shear bands was calculated and the result showed that it could reach the temperature of the super-cooled liquid zone or exceed the melting point. The temperature rise caused viscous fluid flow and brought about the deformation of BMGs. This suggested that the deformation of BMGs was derived, at least to some extent, from the adiabatic shear temperature rise.

引用

页码：1972 / 1976

页数：5

共 26 条

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

ARGON, AS .

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

[2] The dynamic compressive behavior of beryllium bearing bulk metallic glasses [J].

Bruck, HA ;

Rosakis, AJ ;

Johnson, WL .

JOURNAL OF MATERIALS RESEARCH, 1996, 11 (02) :503-511

[3] THE STRUCTURE OF SHEAR BANDS IN METALLIC GLASSES [J].

DONOVAN, PE ;

STOBBS, WM .

ACTA METALLURGICA, 1981, 29 (08) :1419-1436

[4] Fracture and deformation of bulk metallic glasses and their composites [J].

Flores, KM ;

Dauskardt, RH .

INTERMETALLICS, 2004, 12 (7-9) :1025-1029

[5] Local heating associated with crack tip plasticity in Zr-Ti-Ni-Cu-Be bulk amorphous metals [J].

Flores, KM ;

Dauskardt, RH .

JOURNAL OF MATERIALS RESEARCH, 1999, 14 (03) :638-643

[6] Flow and fracture of bulk metallic glass alloys and their composites [J].

Flores, KM ;

Suh, D ;

Howell, R ;

Asoka-Kumar, P ;

Sterne, PA ;

Dauskardt, RH .

MATERIALS TRANSACTIONS, 2001, 42 (04) :619-622

[7] Microstructure controlled shear band pattern formation and enhanced plasticity of bulk metallic glasses containing in situ formed ductile phase dendrite dispersions [J].

Hays, CC ;

Kim, CP ;

Johnson, WL .

PHYSICAL REVIEW LETTERS, 2000, 84 (13) :2901-2904

[8] Composition dependence of the microstructure and the mechanical properties of nano/ultrafine-structured Ti-Cu-Ni-Sn-Nb alloys [J].

He, G ;

Eckert, J ;

Löser, W ;

Hagiwara, M .

ACTA MATERIALIA, 2004, 52 (10) :3035-3046

[9] Stabilization of metallic supercooled liquid and bulk amorphous alloys [J].

Inoue, A .

ACTA MATERIALIA, 2000, 48 (01) :279-306

[10] Energy dissipation in fracture of bulk metallic glasses via inherent competition between local softening and quasi-cleavage [J].

Jiang, M. Q. ;

Ling, Z. ;

Meng, J. X. ;

Dai, L. H. .

PHILOSOPHICAL MAGAZINE, 2008, 88 (03) :407-426

← 1 2 3 →