Obtaining γ″ phase by addition of Mn in Mg-Gd-Y-Zn-Ni-Mn alloy: atomic-scale insights by scanning transmission electron microscopy
Source abstract
Abstract
To develop γ″ phase (hexagonal structure with space group P6¯2m) containing high strength Mg-Gd alloys at lower cost, Mn instead of Ag was added. The state-of-art scanning transmission electron microscopy was applied to characterise γ″ in solution-treated and aged Mg-Gd-Y-Zn-Ni-Mn alloys on the atomic scale. γ″ was not found in the solution-treated state but was captured to precipitate during aging. γ″ with nonuniform occupations of Gd and Y was observed. Different modes of interaction between γ″ and β′ are proposed. The formation of γ″ promoted by Mn was not accidental, suggesting the possibility to form plenty of γ″.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Hydrogen Storage and Materials · Aluminum Alloys Composites Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
Funding
National Natural Science Foundation of China · National Key Research and Development Program of China
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