The Influence of Cu-Additions on the Microstructure, Mechanical and Magnetic Properties of MnAl-C Alloys
dc.bibliographicCitation.firstPage | 7897 | eng |
dc.bibliographicCitation.issue | 1 | eng |
dc.bibliographicCitation.lastPage | 1286 | eng |
dc.bibliographicCitation.volume | 10 | eng |
dc.contributor.author | Jürries, F. | |
dc.contributor.author | Freudenberger, J. | |
dc.contributor.author | Nielsch, K. | |
dc.contributor.author | Woodcock, T.G. | |
dc.date.accessioned | 2020-07-17T12:25:31Z | |
dc.date.available | 2020-07-17T12:25:31Z | |
dc.date.issued | 2020 | |
dc.description.abstract | Alloys of the form (Mn54Al44C2)100-xCux (with x = 0, 1, 2, 4 and 6) were produced by induction melting. After homogenisation and quenching, most of the alloys consist entirely of the retained ε-phase, except for x = 6, in which the κ-phase was additionally present. After subsequent annealing, the alloys with x ≤ 2 consist entirely of a Cu-doped, ferromagnetic τ-phase, whereas the alloys with x > 2 additionally contain the κ-phase. The polarisation of the alloys at an applied field of 14 T decreases with increasing Cu-content, which is attributed i) to the dilution of the magnetic moment of the τ-phase unit cell by the Cu atoms, which do not carry a magnetic moment, and ii) at higher Cu-contents, to the formation of the κ-phase, which has a much lower polarisation than the τ-phase and therefore dilutes the net polarisation of the alloys. The Curie temperature was not affected by the Cu-additions. The stress needed to die-upset the alloys with x ≤ 2 was similar to that of the undoped alloy, whereas it was much lower for x = 4 and 6, due to the presence of intergranular layers of the κ-phase. The extrinsic magnetic properties of alloys with x ≤ 2 were improved by die-upsetting, whereas decomposition of the τ-phase during processing had a deleterious effect on the magnetic properties for higher Cu-additions. | eng |
dc.description.sponsorship | Leibniz_Fonds | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://doi.org/10.34657/3585 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/4956 | |
dc.language.iso | eng | eng |
dc.publisher | London : Nature Publishing Group | eng |
dc.relation.doi | https://doi.org/10.1038/s41598-020-64697-8 | |
dc.relation.ispartofseries | Scientific Reports 10 (2020), Nr. 1 | eng |
dc.relation.issn | 2045-2322 | |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject | MnAl-C Alloys | eng |
dc.subject | Mechanical Properties | eng |
dc.subject | Magnetic Properties | eng |
dc.subject | Microstructure | eng |
dc.subject.ddc | 530 | eng |
dc.title | The Influence of Cu-Additions on the Microstructure, Mechanical and Magnetic Properties of MnAl-C Alloys | eng |
dc.type | article | eng |
dc.type | Text | eng |
dcterms.bibliographicCitation.journalTitle | Scientific Reports | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IFWD | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
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