Phase Compositions of a Mg-Dy-Zn Alloy Containing LPSO Structures

Xue Cheng Cai; Qiu Ming Peng; Da Qing Fang

doi:10.4028/www.scientific.net/MSF.815.470

Paper Titles

Titanium Nitride Modified by Hydrothermal Treatment in Calcium Acetate Solution
p.446

Effect of Sericin Concentration on the Growth and Morphology of Escherichi Coli
p.451

Chirality Synthesis of N-Shaped ZnO Nanorods by Glacial Acetic Acid Assisted Annealing Process and Ethanol Sensing Properties
p.458

Synthesis and Characterization of Optical Active PLA Degradable Materials
p.464

Phase Compositions of a Mg-Dy-Zn Alloy Containing LPSO Structures
p.470

Synthesis and Characterization of Polythiophene Derivatives with Different Alkyl Substitution Groups
p.477

Microwave Absorption Properties of Solid-State Polymerization Ethylenedioxythiophene
p.483

Surface Modified UHMWPE Particles by Direct Fluorination Blended with Polyurethane for Enhancing its Wear-Resistant Performance
p.489

Preparation and Mechanical Properties of Poly (arylene sulfide sulfone)/Glass Fiber Cloth Composites
p.496

HomeMaterials Science ForumMaterials Science Forum Vol. 815Phase Compositions of a Mg-Dy-Zn Alloy Containing...

Phase Compositions of a Mg-Dy-Zn Alloy Containing LPSO Structures

Abstract:

The phase compositions of a Mg-2Dy-0.5Zn (at.%) alloy under different solid solution temperature was investigated by differential thermal analysis (DSC), X-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The results indicated that the as-cast sample was mainly composed of an 18R long period stacking ordered (LPSO) phase and Mg matrix. The disappearance of 18R-LPSO phase, together with the presence of 14H-LPSO phase, occurred when solid solution treatment (SST) was at 535 °C. When the temperature was higher than 535 °C, the 18R-LPSO phase was detected again companied with a new Mg₈ZnDy eutectic phase.