On the dynamic character of localized failure

On the dynamic character of localized failure

The dynamic stored energy of cold work (SECW) has recently been identified as the trigger for adiabatic shear failure. However, the question of what makes the failure “dynamic” has remained open so far. Using compression tests (Ti6A14V alloy) over a wide range of strain rates [10−4–104s−1], we have...

Full description

Saved in:
Bibliographic Details
Published in:Scripta materialia Vol. 67; no. 7-8; pp. 693 - 695
Main Authors: Osovski, S., Nahmany, Y., Rittel, D., Landau, P., Venkert, A.
Format: Journal Article
Language:English
Published: Elsevier Ltd 01-10-2012
Subjects:
Dynamic recrystallization
Microstructure
Shear bands
Transmission electron microscopy (TEM)
Microstructure
Dynamic recrystallization
Transmission electron microscopy (TEM)
Shear bands
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The dynamic stored energy of cold work (SECW) has recently been identified as the trigger for adiabatic shear failure. However, the question of what makes the failure “dynamic” has remained open so far. Using compression tests (Ti6A14V alloy) over a wide range of strain rates [10−4–104s−1], we have identified a transition strain rate above which both the dynamic SECW and the microstructure are radically different from their static counterparts, thereby outlining the onset of “dynamic” failure.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2012.07.001