Quenching of High Entropy Alloys after Annealing
| dc.date.accessioned | 2023-04-21T07:41:25Z | |
| dc.date.available | 2023-04-21T07:41:25Z | |
| dc.date.issued | 2020 | |
| dc.identifier | doi:10.17170/kobra-202304217870 | ger |
| dc.identifier.uri | http://hdl.handle.net/123456789/14615 | |
| dc.language.iso | eng | |
| dc.rights | Namensnennung-Nicht-kommerziell 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | * |
| dc.subject | High entropy alloys | eng |
| dc.subject | Cooling rate | eng |
| dc.subject | Annealing | eng |
| dc.subject | Microstructure | eng |
| dc.subject | Hardness | eng |
| dc.subject.ddc | 600 | |
| dc.title | Quenching of High Entropy Alloys after Annealing | eng |
| dc.type | Aufsatz | |
| dcterms.abstract | The effect of cooling rate after annealing at 900 °C on the microstructure and hardness of high entropy alloys was investigated using two typical samples with the chemical composition of Co₁₆Cr₁₄.₅Fe₂₉Mn₁₁.₅Ni₂₉ and Co₁₁.₅Cr₇Fe₂₇Mn₂₇Ni₂₇(Nb₀.₀₈C₀.₅) (at%). The microstructural characterisation and hardness measurements were carried out by optical microscopy, scanning electron microscopy, wavelength-dispersive X-ray spectroscopy, electron back scattered diffraction, X-ray diffraction technique and Vickers hardness testing. A face centred cubic crystal structure matrix was observed in both alloys before and after annealing and regardless of cooling conditions. SEM analyses revealed an extensive precipitation in Co₁₁.₅Cr₇Fe₂₇Mn₂₇Ni₂₇ (Nb₀.₀₈C₀.₅) alloy after annealing. It was also found that air/furnace cooling can enhance grain growth-coarsening just in Co₁₆Cr₁₄.₅Fe₂₉Mn₁₁.₅Ni₂₉. However, the hardness results generally showed insignificant hardness variations in both alloys after water-quenching, air-cooling and furnace-cooling. The results suggested that the hardness is mainly controlled by solid solution strengthening. | eng |
| dcterms.accessRights | open access | |
| dcterms.creator | Abbasi, Erfan | |
| dcterms.creator | Dehghani, Kamran | |
| dcterms.creator | Sajadifar, Seyed Vahid | |
| dcterms.creator | Niendorf, Thomas | |
| dcterms.extent | 130-141 | |
| dc.relation.doi | doi:10.22068/ijmse.17.4.130 | |
| dc.subject.swd | Mikrostruktur | ger |
| dc.subject.swd | Legierung | ger |
| dc.type.version | publishedVersion | |
| dcterms.source.identifier | eissn:2383-3882 | |
| dcterms.source.issue | Issue 4 | |
| dcterms.source.journal | Iranian Journal of Materials Science and Engineering | eng |
| dcterms.source.volume | Volume 17 | |
| kup.iskup | false |
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