DISLOCATION DISTRIBUTIONS AS SEEN BY X-RAY-LINE PROFILES

Authors
UNGAR T BIERMANN H MUGHRABI H
Citation
T. Ungar et al., DISLOCATION DISTRIBUTIONS AS SEEN BY X-RAY-LINE PROFILES, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 164(1-2), 1993, pp. 175-179
Citations number
15
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
164
Issue
1-2
Year of publication
1993
Pages
175 - 179
Database
ISI
SICI code
0921-5093(1993)164:1-2<175:DDASBX>2.0.ZU;2-D
Abstract
Asymmetric X-ray line broadening is direct evidence for the existence of residual long-range internal stresses in plastically deformed metal s containing heterogeneously distributed dislocations, especially disl ocation cell structures. Asymmetric line profiles and concomitant long -range internal stresses were found after various types of deformation , such as tensile deformation, fatigue, compression and wire drawing o ver a wide range of strains from 2 x 10(-3) to 1.52. As a general resu lt, it is found that the long-range internal stresses increase monoton ically up to about 15% strain and level off into saturation at larger strains.