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| Hauptseite > Publikationsdatenbank > Co-deformation between the metallic matrix and intermetallic phases in a creep-resistant Mg-3.68Al-3.8Ca alloy > print |
| Hauptseite > Publikationsdatenbank > Co-deformation between the metallic matrix and intermetallic phases in a creep-resistant Mg-3.68Al-3.8Ca alloy > print |
| 001 | 904933 | ||
| 005 | 20230123101844.0 | ||
| 024 | 7 | _ | |a 10.1016/j.matdes.2021.110113 |2 doi |
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| 100 | 1 | _ | |a Zubair, M. |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Co-deformation between the metallic matrix and intermetallic phases in a creep-resistant Mg-3.68Al-3.8Ca alloy |
| 260 | _ | _ | |a Amsterdam [u.a.] |c 2021 |b Elsevier Science |
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| 520 | _ | _ | |a The microstructure of Mg-Al-Ca alloys consists of a hard intra- and intergranular eutectic Laves phase network embedded in a soft α-Mg matrix. For such heterogeneous microstructures, the mechanical response and co-deformation of both phases under external load are not yet fully understood. We therefore used nano- and microindentation in combination with electron microscopy to study the deformation behaviour of an Mg-3.68Al-3.8Ca alloy.We found that the hardness of the Mg2Ca phase was significantly larger than the α-Mg phase and stays constant within the measured temperature range. The strain rate sensitivity of the softer α-Mg phase and of the interfaces increased while activation volume decreased with temperature. The creep deformation of the Mg2Ca Laves phase was significantly lower than the α-Mg phase at 170 °C. Moreover, the deformation zone around and below microindents was dependant on the matrix orientation and was influenced by the presence of Laves phases. Most importantly, slip transfer from the α-Mg phase to the (Mg,Al)2Ca Laves phase occurred, carried by the basal planes. Based on the observed orientation relationship and active slip systems, a slip transfer mechanism from the soft α-Mg phase to the hard Laves phase is proposed. Further, we present implications for future alloy design strategies. |
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| 536 | _ | _ | |a SFB-1394-A03 - Charakterisierung von Versetzungen und planaren Defekten (A03) (437411567) |0 G:(GEPRIS)437411567 |c 437411567 |x 1 |
| 536 | _ | _ | |a SFB 1394 A05 - Versetzungen in komplexen intermetallischen Phasen (A05) (437412665) |0 G:(GEPRIS)437412665 |c 437412665 |x 2 |
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| 773 | _ | _ | |a 10.1016/j.matdes.2021.110113 |g Vol. 210, p. 110113 - |0 PERI:(DE-600)2015480-X |p 110113 |t Materials and design |v 210 |y 2021 |x 0141-5530 |
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