The generation of dislocations from twin boundaries and its effect upon the flow stresses in FCC metals

Katarzyna Konopka , Jarosław Mizera , J.W Wyrzykowski

Abstract

This paper is concerned with an analysis of the variation of flow stresses with the frequency of twin boundaries present in the microstructure of copper and austenitic steel. The increase of the frequency of twin boundaries results in a reduction of the flow stresses. This effect is explained in terms of dislocations being generated at the twin boundaries. The source of the dislocation generation from these boundaries was found during in situ strain experiments under the transmission electron microscope. The direct observations of dislocations generated from twin boundaries are presented in the paper.
Author Katarzyna Konopka (FMSE / DSMP)
Katarzyna Konopka,,
- Division of Ceramic Materials and Polymers
, Jarosław Mizera (FMSE / DMD)
Jarosław Mizera,,
- Division of Materials Design
, J.W Wyrzykowski - [Warsaw University of Technology (PW)]
J.W Wyrzykowski,,
-
- Politechnika Warszawska
Journal seriesJournal of Materials Processing Technology, ISSN 0924-0136
Issue year2000
Vol99
No1–3
Pages255-259
Keywords in EnglishGeneration of dislocations, mechanical properties, Plastic deformation, Twin boundaries
ASJC Classification2209 Industrial and Manufacturing Engineering; 2506 Metals and Alloys; 1706 Computer Science Applications; 2611 Modelling and Simulation; 2503 Ceramics and Composites
DOIDOI:10.1016/S0924-0136(99)00434-3
URL http://www.sciencedirect.com/science/article/pii/S0924013699004343
Score (nominal)30
Score sourcejournalList
Publication indicators WoS Citations = 34; Scopus Citations = 37; GS Citations = 32.0; Scopus SNIP (Source Normalised Impact per Paper): 2000 = 0.879; WoS Impact Factor: 2006 = 0.615 (2) - 2007=1.133 (5)
Citation count*32 (2015-05-22)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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