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Title: Role of alloying elements on twin growth and twin transmission in magnesium alloys

Journal Article · · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing

A spatially-resolved crystal plasticity Fast Fourier Transform (FFT)-based model is employed to study the effect of alloying addition on twin thickening and twin transmission in hexagonal close packed (HCP) magnesium. In the simulations, the influence of alloying additions is represented through the differences in the critical resolved shear stress (CRSS) of different slip and twinning modes. The results show that for the same grain orientation, twin type and boundary conditions, anisotropy in the CRSS values have a significant effect on twin thickening and twin transmission. Those with large differences in CRSS favor both twin thickening and twin transmission, and vice versa for those with small differences. Furthermore, less difference among the CRSS values enhances the dependence of thickening and transmission on the neighboring grain orientation.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC52-06NA25396; 06SCPE401; NSF CMMI-1729887
OSTI ID:
1378921
Alternate ID(s):
OSTI ID: 1549909
Report Number(s):
LA-UR-17-24734
Journal Information:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 706; ISSN 0921-5093
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 47 works
Citation information provided by
Web of Science

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Cited By (5)

Effect of KOBO Extrusion and Following Cyclic Forging on Grain Refinement of Mg–9Li–2Al–0.5Sc Alloy journal July 2019
Room temperature deformation mechanisms of Mg/Nb nanolayered composites journal May 2018
Microstructure and mechanical properties of extruded Mg–Gd–Y–Zn alloy with Mn or Zr addition journal April 2019
Deformation twinning and grain partitioning in a hexagonal close-packed magnesium alloy journal November 2018
Characterizing the role of adjoining twins at grain boundaries in hexagonal close packed materials journal March 2019

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