Abstract
An Al-Mn-Cu alloy was microalloyed with beryllium, scandium and zirconium, cast into a copper mould, and aged at different temperatures. It was characterised using X-Ray Diffraction, Differential Scanning Calorimetry and Transmission Electron Microscopy. The compression tests of samples aged at 400 °C for 1 h were performed at room temperature, 300 °C and 350 °C, while the accelerated creep tests were performed at 300 °C and 350 °C. Icosahedral QuasiCrystalline and L12 precipitates prevailed in the as-aged microstructure, while the fraction of decagonal precipitates was low. The precipitates possessed specific orientation relationships with the matrix. The alloy exhibited enhanced hardness, compressive strength, and creep resistance in comparison to the Al-Mn-Cu alloys
Original language | English |
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Article number | 100809 |
Number of pages | 6 |
Journal | Materials Today / Communications |
Volume | 22 |
DOIs | |
Publication status | Published - Mar 2020 |
Keywords
- Metals and alloys
- Microstructure
- Quasicrystals
- TEM
- Transmission electron microscopy
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Materials Chemistry
Fields of Expertise
- Advanced Materials Science
Treatment code (Nähere Zuordnung)
- Basic - Fundamental (Grundlagenforschung)