Skip to main content

Evolution of ice crystal microstructure during creep experiments

Buy Article:

$35.11 plus tax (Refund Policy)

Abstract:

Results of laboratory uniaxial compression tests over the stress range 0.18–0.52 MPa and the strain range 0.5–8.6% at approximately –5 and –20°C are presented. Grain-size analysis and comparisons with annealing tests confirm that grain-growth reducing processes are active during deformation. Microstructural observations reveal that sub grain-rotation re crystallization and grain shape changes due to strain-induced grain-boundary migration are the causes of the grain-growth deceleration. Further results from microstructural observations show that obstacle formation by dislocation walls and sub grain boundaries is the reason for isotropic hardening during creep. Sub grain boundary types that are likely to be relevant for studies on the activity of different dislocation types are described.

Document Type: Research Article

DOI: http://dx.doi.org/10.3189/002214307783258341

Publication date: July 1, 2007

More about this publication?
  • The Journal of Glaciology is published six times per year. It accepts submissions from any discipline related to the study of snow and ice. All articles are peer reviewed. The Journal is included in the ISI Science Citation Index.
  • Editorial Board
  • Information for Authors
  • Ingenta Connect is not responsible for the content or availability of external websites
igsoc/jog/2007/00000053/00000182/art00017
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more