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Title: Investigation of the dependence of deformation mechanisms on solute content in polycrystalline Mg–Al magnesium alloys by neutron diffraction and acoustic emission

Influence of aluminium content on the deformation mechanisms in Mg–Al binary alloys has been studied using in-situ neutron diffraction and acoustic emission technique. Here, it is shown that the addition of the solute increases the critical resolved shear stress for twinning. Further, the role of aluminium on the solid solution hardening of the basal plane and softening of non-basal planes are discussed using results of the convolutional multiple peak profile analysis of diffraction patterns. In conclusion, the results indicate that the density of both prismatic and pyramidal dislocations increases with increasing alloying content.
Authors:
 [1] ;  [1] ; ORCiD logo [2] ;  [1] ;  [3]
  1. Charles University, Prague (Czech Republic)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. University of Strathclyde, Glasgow (United Kingdom)
Publication Date:
Report Number(s):
LA-UR-14-29719
Journal ID: ISSN 0925-8388
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 642; Journal Issue: C; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Magnesium; Neutron diffraction; Solution hardening; Twinning; Non-basal slip
OSTI Identifier:
1454981
Alternate Identifier(s):
OSTI ID: 1250211