PT  - JOURNAL ARTICLE
AU  - Dvorský, Drahomír
AU  - Kawamura, Yoshihito
AU  - Inoue, Shin-Ichi
AU  - Kubásek, Jiří
AU  - Nečas, David
AU  - Heller, Luděk
AU  - De Prado, Esther
AU  - Duchoň, Jan
AU  - Svora, Petr
AU  - Čavojský, Miroslav
AU  - Vojtěch, Dalibor
TI  - Improving Strength and Ductility in Mg-Y-Zn alloy via Pre-deformation Prior to Extrusion
DP  - 2025 Nov 11
TA  - Manufacturing Technology Journal
PG  - 455--459
VI  - 25
IP  - 4
AID - 10.21062/mft.2025.059
IS  - 12132489
AB  - The Mg-Y-Zn alloy system is well known for its outstanding combination of high strength and ductility, even at relatively low concentrations of alloying elements. This exceptional performance is primarily at-tributed to its characteristic microstructure, which features Long-Period Stacking Ordered (LPSO) phas-es and the distinctive Mille-Feuille Structure (MFS). Kink-induced strengthening, developed during thermomechanical processing, has emerged as a promising strategy to simultaneously enhance strength and ductility. In this study, the beneficial effect of pre-deformation aimed at introducing additional kinks into the microstructure prior to extrusion is demonstrated. The subsequent extrusion process promotes dynamic recrystallization (DRX), generating fine DRX grains while preserving kink structures in the non-DRX regions. As a result, the yield strength is enhanced by approximately 80 MPa, accom-panied by a slight improvement in ductility.