Identifying creep mechanisms in plastic flow
Identifying creep mechanisms in plastic flow
The mechanisms occurring in plastic flow at elevated temperatures may be divided into three distinct classes depending upon whether they are intragranular dislocation mechanisms, grain boundary sliding including superplasticity or diffusion creep occurring through vacancy flow. The characteristics of these various mechanisms are described and procedures are outlined for distinguishing between the different processes. Using this approach, it is shown that there is good experimental data supporting the occurrence of both Harper Dorn creep and Nabarro Herring diffusion creep as distinct creep processes. Recent results reported from computer simulations, combined with experimental observations, suggest the possible occurrence of grain boundary sliding at low temperatures in nanostructured and ultrafine-grained materials.
522-531
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2005
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Langdon, T.G.
(2005)
Identifying creep mechanisms in plastic flow.
Zeitschrift fur Metallkunde, 96, .
Abstract
The mechanisms occurring in plastic flow at elevated temperatures may be divided into three distinct classes depending upon whether they are intragranular dislocation mechanisms, grain boundary sliding including superplasticity or diffusion creep occurring through vacancy flow. The characteristics of these various mechanisms are described and procedures are outlined for distinguishing between the different processes. Using this approach, it is shown that there is good experimental data supporting the occurrence of both Harper Dorn creep and Nabarro Herring diffusion creep as distinct creep processes. Recent results reported from computer simulations, combined with experimental observations, suggest the possible occurrence of grain boundary sliding at low temperatures in nanostructured and ultrafine-grained materials.
This record has no associated files available for download.
More information
Published date: 2005
Additional Information:
Dedicated to Professor Wolfgang Blum on the occasion of his 65th birthday
Identifiers
Local EPrints ID: 23828
URI: http://eprints.soton.ac.uk/id/eprint/23828
PURE UUID: 3e7884d1-a81b-42a7-b6d5-3820b7d62e3f
Catalogue record
Date deposited: 17 Mar 2006
Last modified: 27 Apr 2022 01:44
Export record
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
