Tracer diffusion in ordered pseudo-binary multicomponent aluminides
| Autor: | Mayur Vaidya, B.S. Murty, Gerhard Wilde, Sergiy V. Divinski, G. Mohan Muralikrishna |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Diffraction Materials science Mechanical Engineering Diffusion Metals and Alloys Binary number Thermodynamics 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Condensed Matter::Materials Science Transition metal Mechanics of Materials TRACER 0103 physical sciences General Materials Science Single phase 0210 nano-technology |
| Zdroj: | Scripta Materialia. 178:227-231 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2019.11.044 |
| Popis: | Self-diffusion in ordered pseudo-binary multicomponent aluminides is investigated. Equiatomic substitution of transition metal sublattice in aluminides is performed to produce multicomponent alloys Al(CoNi), Al(FeNi), Al(CoFe), Al(CoFeNi), Al(CoFeMnNi) and Al(CoCuFeMnNi). X-ray diffraction and electron microscopy confirm the presence of single phase ordered BCC structure for all the alloys. Radioactive isotopes of 57Co, 59Fe, 54Mn, 63Ni and 65Zn are used to measure the tracer diffusion coefficients in all the alloys at 1273 K. The influence of multi-principal element alloying of the transition metal sublattice on self-diffusion is mapped to its impact on the defect structure in these ordered alloys. |
| Databáze: | OpenAIRE |
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