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Non-dissociated <c+a> dislocations in an AZ31 alloy revealed by transmission electron microscopy
- Source :
- Materials Research Letters, Vol 8, Iss 4, Pp 145-150 (2020)
- Publication Year :
- 2020
- Publisher :
- Informa UK Limited, 2020.
-
Abstract
- dislocations in pure Mg have been reported to dissociate on basal planes, resulting in a sessile configuration that limits the ductility and formability of Mg. In this study, careful tilting experiments and weak-beam dark-field electron microscopy observations elucidated that dislocations in the commercial alloy AZ31 remain compact without apparent dissociation. The stabilization of the dislocation core structure with Al and Zn alloying may explain the improved strain to failure in the AZ31 alloy as compared to pure Mg samples.
- Subjects :
- non-dissociation
010302 applied physics
Materials science
dislocation
Magnesium
chemistry.chemical_element
02 engineering and technology
magnesium
021001 nanoscience & nanotechnology
ductility
01 natural sciences
AZ31 alloy
chemistry
Transmission electron microscopy
0103 physical sciences
lcsh:TA401-492
Formability
lcsh:Materials of engineering and construction. Mechanics of materials
General Materials Science
Dislocation
Composite material
0210 nano-technology
Ductility
Subjects
Details
- ISSN :
- 21663831
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Materials Research Letters
- Accession number :
- edsair.doi.dedup.....e8f2fceb361103580fdcd6b88df0e909