Effect of Al doping on the magnetic and elastic properties of Fe65Ni35Invar alloys
| Autor: | Asli Çakir |
|---|---|
| Přispěvatelé: | MÜ, Mühendislik Fakültesi, Metalurji Ve Malzeme Mühendisliği Bölümü, Çakır, Aslı |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Condensed matter physics Invar Alloy Doping Invar alloy elastic modulus magnetization structural characterization General Physics and Astronomy Structural Characterization engineering.material Magnetization Condensed Matter::Materials Science Elastic Modulus Invar alloy engineering Computer Science::Symbolic Computation Elastic modulus Invar |
| Zdroj: | Volume: 43, Issue: 1 109-115 Turkish Journal of Physics |
| ISSN: | 1303-6122 1300-0101 |
| DOI: | 10.3906/fiz-1809-25 |
| Popis: | Invar alloys have great importance due to their low thermal expansion coefficient. The effect of Al doping on Fe65 Ni35 Invar alloy was investigated by temperature-dependent magnetization and elastic modulus measurements. First, 0.44 at% and 2.24 at% of Al were substituted for Ni. Then X-ray diffraction measurements, Rietveld refinements, and scanning electron microscopy studies were performed to understand the effect of Al-doping on the face-centered cubic structure. The elastic modulus of Fe65 Ni35 and the Al-doped samples were measured in the temperature range 300 ≤ T ≤ 870 K using impulse excitation. The temperature dependence of magnetization and elastic modulus results for the Al-doped Invar alloys were compared with those of nondoped Invar alloy. Al doping to Fe65 Ni35 Invar alloy led to volume shrinkage and decreasing Curie temperature as seen in the effect of hydrostatic pressure application. |
| Databáze: | OpenAIRE |
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