TY - CHAP

T1 - Influence of Equal-Channel Angular Pressing on the Microstructure and Texture of Mg-Zn-Y-Zr-RE Alloy Sheets

AU - Böhm, Viktor

AU - Gruber, Maximilian

AU - Abele, Elias

AU - Steinbauer, Cordula

AU - Victoria-Hernández, José

AU - Letzig, Dietmar

AU - Ben Khalifa, Noomane

AU - Volk, Wolfram

N1 - Funding Information: Acknowledgements. The results of this study have been published as part of the joint research project VI 1169/1-1 and VO 1487/58-1 “Reduction of plastic anisotropy and improved formability of novel magnesium alloy sheets through utilization of Equal-Channel Angular Pressing (ECAP)”, which was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – 455383045. Publisher Copyright: © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

PY - 2024

Y1 - 2024

N2 - Due to their high specific strength, rolled Magnesium sheets have excellent prerequisites for lightweight construction applications. However, the hexagonal crystal structure of Mg offers only few slip systems that can be activated at low temperature, thus limiting the ductility. Additionally, the pronounced texture of rolled Mg sheets further limits its cold formability. Equal-Channel Angular Pressing (ECAP) is a suitable way to tailor the crystallographic texture, refine the grains, and thus improve the formability of the sheets. Since it is a discontinuous process, deformation can be applied in different shear planes by rotating the sheets. The influence of these so-called process routes on the resulting microstructure of the sheets is investigated in this work using a Mg-Zn-Y-Zr-RE alloy. Already after the second ECAP pass, a noticeable grain size refinement could be achieved. Furthermore, experimental studies showed that the elongation at fracture at elevated temperatures of the Mg alloy can be increased by ECAP.

AB - Due to their high specific strength, rolled Magnesium sheets have excellent prerequisites for lightweight construction applications. However, the hexagonal crystal structure of Mg offers only few slip systems that can be activated at low temperature, thus limiting the ductility. Additionally, the pronounced texture of rolled Mg sheets further limits its cold formability. Equal-Channel Angular Pressing (ECAP) is a suitable way to tailor the crystallographic texture, refine the grains, and thus improve the formability of the sheets. Since it is a discontinuous process, deformation can be applied in different shear planes by rotating the sheets. The influence of these so-called process routes on the resulting microstructure of the sheets is investigated in this work using a Mg-Zn-Y-Zr-RE alloy. Already after the second ECAP pass, a noticeable grain size refinement could be achieved. Furthermore, experimental studies showed that the elongation at fracture at elevated temperatures of the Mg alloy can be increased by ECAP.

KW - Crystallographic Texture

KW - Equal-Channel Angular Pressing

KW - Magnesium Alloy

KW - Microstructure Optimization

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85174809256&partnerID=8YFLogxK

UR - https://d-nb.info/130032872X

U2 - 10.1007/978-3-031-41341-4_47

DO - 10.1007/978-3-031-41341-4_47

M3 - Article in conference proceedings

AN - SCOPUS:85174809256

SN - 978-3-031-41340-7

VL - 3

T3 - Lecture Notes in Mechanical Engineering

SP - 456

EP - 466

BT - Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity

A2 - Mocellin, Katia

A2 - Bouchard, Pierre-Olivier

A2 - Bigot, Régis

A2 - Balan, Tudor

PB - Springer International Publishing AG

CY - Cham

T2 - 14th International Conference on Technology of Plasticity, ICTP 2023

Y2 - 24 September 2023 through 29 September 2023

ER -