Effect of chrome on the magnetic and structural properties of Mn57-xAl43Crx (x = 0.51, 0.91, 1.51) and Mn53.3-XAl45C1.7Crx (x = 0.0, 0.5, 1.0, 1.5, 2.0, 2.5) alloy systems
| Autor: | Marisela Benitez, Germán Antonio Pérez Alcázar, J. Sebastián Trujillo |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering Doping Alloy Analytical chemistry 02 engineering and technology engineering.material Coercivity 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Paramagnetism Ferromagnetism Mechanics of Materials Remanence Metastability Phase (matter) engineering General Materials Science 0210 nano-technology |
| Zdroj: | Materials Letters. 295:129853 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2021.129853 |
| Popis: | The effect of Cr doping, in melted and heat treated (HT) at different temperatures of Mn57-xAl43Crx with x = 0.51, 0.91, 1.51 and Mn53.3-xAl45C1.7Crx with x = 0.0, 0.5, 1.0, 1.5, 2.0, 2.5 alloys were studied. In samples with C and Cr (0 and 1.0 at.%) a paramagnetic epsilon phase (e), and ferromagnetic tau phase (τ), with hard magnetic behavior, with coercive field Hc of 2.67 and 2.32 kOe, saturation magnetization Ms of 68 and 66 emu/g, remanent magnetization Mr of 39.6 and 33.6 emu/g, and product (BH)max of 0.91 and 0.69 MGOe, respectively, were observed. But for samples doped with Cr ≠ 1.0 at.% the metastable τ-phase partially decomposes into gamma (γ2) and beta (β) phases. The samples have particle sizes between 108 and 127 µm. |
| Databáze: | OpenAIRE |
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