Atomic‐Scale Insight into Structure and Interface of Al2Y Phase in an Mg–Al–Y Alloy
Source abstract
Abstract
Atomic‐scale structure of Al2Y phase and its interface with magnesium matrix in an Mg–1Al–6.2Y (wt%) alloy have been investigated using scanning transmission electron microscopy (STEM) and density‐functional theory (DFT). Apart from micro‐sized Al2Y particles in the interior of grains or along grain boundaries, nano‐sized Al2Y lamella with a large aspect ratio precipitates within the grains. Y − enriched stacking faults are introduced at the lamellar Al2Y/Mg interface due to 0.07% lattice misfit between (022)Al2Y and Mg planes. The first‐principles simulation clarifies that Al2Y/Mg interface is energetically occupied by Al atoms other than Y atoms.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Shenyang National Laboratory for Materials Science Institute of Metal Research, Chinese Academy of Sciences 72 Wenhua Road 110016 Shenyang China
Department of Materials Science and Engineering Shenyang Aerospace University No.37 Daoyi South Avenue 110136 Shenyang China
School of Materials Science and Engineering Lanzhou University of Technology 287 Langongping Road 730050 Lanzhou China
Funding
National Natural Science Foundation of China
References (34)
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