Abstract
Magnetization (M) of binary Al-Mg alloys and intermetallic compounds were measured in the temperature (T) range from 10 to 300 K. The Al-rich alloys Al - 2, 3, 4, 5, and 10 at% Mg) revealed diamagnetic contributions to the magnetization correlating to the Mg concentrations. For the β-phase Al3Mg2 the M vs T curve lay very close to that of pure Mg over the entire measured T region. The magnetization of the γ-phase samples exhibited enhanced paramagnetism for Al44Mg56 and Al12Mg17, but the diamagnetism for Al45Mg55. There were diamagnetic contributions to the magnetization of the Mg-rich alloys (Mg - 5, 10, and 15 at% Al) depending on the Al concentration, possibly due to the γ-phase precipitations. Heat capacity of the γ-phase samples and pure Al were measured to estimate the electronic specific heat coefficients which were found to be almost the same. Density functional theory calculations for the Al-Mg compounds were carried out to aid interpretation of the observed magnetization.
Original language | English |
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Article number | 160226 |
Journal | Journal of Alloys and Compounds |
Volume | 877 |
DOIs | |
State | Published - 2021/10/05 |
Keywords
- Al-Mg alloys
- AlMg
- DFT calculations
- Diamagnetism
- Magnetization
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry