Structural-Phase Transformations and Short-Range Order Evolution in the Fe–Cr System during Mechanical Alloying
| Autor: | G. A. Dorofeev, A. L. Ulyanov, V. E. Porsev |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Diffraction Structural phase Materials science Analytical chemistry One stage chemistry.chemical_element Condensed Matter Physics 01 natural sciences Nanocrystalline material Electronic Optical and Magnetic Materials Chromium chemistry 0103 physical sciences Mössbauer spectroscopy Short range order 010306 general physics Ball mill |
| Zdroj: | Physics of the Solid State. 62:1117-1125 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783420070203 |
| Popis: | Using Mossbauer spectroscopy on 57Fe nuclei and X-ray diffraction, the mechanism of mechanical alloying in a planetary ball mill of the Fe–Cr nanocrystalline system in a concentration range from 20 to 48 at % Cr has been studied in detail. It has been established that mechanical alloying occurs in one stage at a concentration of up to 30 at % Cr and in three stages at higher concentrations. The change in the mechanism of mechanical alloying occurs as iron is saturated with chromium and is caused by the inversion of the sign of the mixing energy from negative to positive. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink