Crystal structure and mechanical properties of a new ternary phase in Mg-Zn-Y alloy solidified under high pressure
Journal
Journal of Alloys and Compounds
Journal Volume
717
Start Page
214
End Page
218
ISSN
09258388
Date Issued
2017
Author(s)
Abstract
A new ternary phase, Mg64.093±0.004Zn15.355±0.002Y20.552±0.005 (at. %) was found in a Mg-Zn-Y alloy prepared by high pressure solidification. A full set of crystal structure parameters including the atomic coordinates of this new phase were determined using X-ray diffraction with Rietveld refinement and electron probe micro-analysis. Furthermore, the mechanical properties of this phase, including the Young's modulus and hardness were reported by nanoindentation test. Theoretical elastic constants, bulk modulus, shear modulus, Young's modulus, Poisson's ratio of this phase were calculated by first-principles. Results indicate that this phase is a ductile materials phase. © 2017 Elsevier B.V.
Subjects
Computer simulations
Crystal structure
Mechanical properties
Metals and alloys
Phase transition
X-ray diffraction
Publisher
Elsevier Ltd
Type
journal article