Al–RE Intermetallic Phase Stability and Effects on Corrosion Behavior in Cold‐Chamber HPDC AE44 Alloy
Source abstract
Abstract
Mg–4Al–4RE (wt%, AE44) alloy is prepared by cold‐chamber high‐pressure die‐casting (HPDC). The microstructure, thermal stability of Al–RE phases and its effect on corrosion behavior are investigated. The main strengthening phase is Al11RE3, which is thermally instable when heated at 400 °C. Some Al11RE3 would be transformed to Al2RE. The alloy in HPDC state exhibits relatively high corrosion resistance due to the Al11RE3 at grain boundaries that can act as the corrosion barrier. While after heat treatment at 400 °C for 1000 h and 5000 h, the corrosion resistance performance degrades due to the changes of morphology and distribution of Al–RE phases.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Superlight Material and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University Harbin 150001 China
College of Materials Science and Engineering Jiamusi University Jiamusi 154007 China
College of Information Science and Electronic Technology, Jiamusi University Jiamusi 154007 China
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