Record Details

Fracture in metallic glasses: mechanics and mechanisms

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Fracture in metallic glasses: mechanics and mechanisms
 
Creator NARASIMHAN, R
TANDAIYA, P
SINGH, I
NARAYAN, RL
RAMAMURTY, U
 
Subject MOLECULAR-DYNAMICS SIMULATIONS
ELASTIC PLASTIC SOLIDS
CRACK-TIP FIELDS
NI-CU-BE
MATRIX COMPOSITES
TENSILE DUCTILITY
BRITTLE TRANSITION
IMPACT TOUGHNESS
AMORPHOUS-ALLOYS
ATOMIC-STRUCTURE
Metallic glasses
Crack tip fields
Vein patterns
Shear bands
Nanocorrugations
Cavitation
 
Description Significant progress in understanding the mechanical behavior of metallic glasses (MGs) was made over the past decade, particularly on mechanisms of plastic deformation. However, recent research thrust has been on exploring the mechanics and physics of fracture. MGs can be very brittle with K-Ic values similar to silicate glasses and ceramics or very tough with K-Ic akin to high toughness crystalline metals. Even the tough MGs can become brittle with structural relaxation following annealing at temperatures close to glass transition temperature (T-g). Detailed experimental studies coupled with complementary numerical simulations of the recent past have provided insights on the micromechanisms of failure as well as nature of crack tip fields, and established the governing fracture criteria for ductile and brittle glasses. In this paper, the above advances are reviewed and outstanding issues in the context of fracture of amorphous alloys that need to be resolved are identified.
 
Publisher SPRINGER
 
Date 2016-01-14T12:03:44Z
2016-01-14T12:03:44Z
2015
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF FRACTURE, 191(42006SI)53-75
0376-9429
1573-2673
http://dx.doi.org/10.1007/s10704-015-9995-3
http://dspace.library.iitb.ac.in/jspui/handle/100/17449
 
Language en