Enhanced toughness due to stable crack tip damage zones in bulk metallic glass

被引：141

作者：

Flores, KM ^{[1
]}

Dauskardt, RH ^{[1
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

来源：

SCRIPTA MATERIALIA | 1999年 / 41卷 / 09期

关键词：

D O I：

10.1016/S1359-6462(99)00243-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Extraordinarily high values of fracture toughness of a Zr-Ti-Ni-Cu-Be bulk metallic glass are measured using a single edge notched tension geometry. These high toughness values are associated with the development of a crack branching zone contained within the plastic zone ahead of the main crack tip. Evidence suggests that these branches originate as shear bands and represent the true size of the plastic zone due to inhomogeneous plastic deformation.

引用

页码：937 / 943

页数：7

共 15 条

[1] FRACTURE AND FATIGUE CRACK-PROPAGATION IN A NICKEL-BASE METALLIC-GLASS [J].

ALPAS, AT ;

EDWARDS, L ;

REID, CN .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (08) :1395-1409

[2] MECHANISM OF FRACTURE IN GLASSY MATERIALS CAPABLE OF SOME INELASTIC DEFORMATION [J].

ARGON, AS ;

SALAMA, M .

MATERIALS SCIENCE AND ENGINEERING, 1976, 23 (2-3) :219-230

[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] Fracture toughness determination for a beryllium-bearing bulk metallic glass [J].

Conner, RD ;

Rosakis, AJ ;

Johnson, WL ;

Owen, DM .

SCRIPTA MATERIALIA, 1997, 37 (09) :1373-1378

[5] Mechanical properties of tungsten and steel fiber reinforced Zr41.25Ti13.75Cu12.5Ni10Be22.5 metallic glass matrix composites [J].

Conner, RD ;

Dandliker, RB ;

Johnson, WL .

ACTA MATERIALIA, 1998, 46 (17) :6089-6102

[6] 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

[7]

FLORES KM, 1998, IN PRESS MAT RES SOC

[8] Fracture toughness and fatigue-crack propagation in a Zr-Ti-Ni-Cu-Be bulk metallic glass [J].

Gilbert, CJ ;

Ritchie, RO ;

Johnson, WL .

APPLIED PHYSICS LETTERS, 1997, 71 (04) :476-478

[9]

GILBERT CJ, IN PRESS METALL T A

[10]

HAHN GT, 1967, ASTM STP, V432, P5

← 1 2 →