Determination of curie temperatures and thermal oxidation behavior of Fe-Cr matrix composites produced by hot pressing
| Autor: | İlyas Somunkiran, Soner Buytoz, Fethi Dagdelen |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Thermal oxidation
Materials science Mechanical Engineering Alloy Composite number Metals and Alloys 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure Hot pressing 01 natural sciences 0104 chemical sciences Matrix (chemical analysis) Ferromagnetism Mechanics of Materials Materials Chemistry Curie engineering Composite material 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 777:302-308 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2018.10.314 |
| Popis: | Fe-Cr matrix composite alloys were produced by hot pressing (HP) method then their microstructure, mechanical, and oxidation properties were examined in detail. In composite alloys produced with Fe-Cr and Fe-Cr-C alloys, the main phases were Fe, M(Cr, Fe)7C3 phases. In addition, Fe2B/Cr7BC4 phases were formed by addition of B, and Cr, Fe and FeCr-rich regions were found in the microstructure. When the Fe-Cr alloy showed the lowest hardness (average 218 HV0.025), the hardness value was recorded as 286 HV0.025 by the addition of alloying elements. With the help of Thermal Gravimetry (TG) it was determined that the alloys exhibit two different oxidation behaviors. It was also found that the Curie temperatures of the ferromagnetic alloys in operation were decreased with the addition of B to the FeCr alloy. |
| Databáze: | OpenAIRE |
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