The microstructure and anisotropic deformation behavior of rapidly solidified ribbon consolidated Mg-Zn-X (X = Y, Gd, Nd) alloys

0570437 - ÚJF 2024 RIV CH eng J - Journal Article
Drozdenko, D. - Fekete, K. - Dobroň, P. - Németh, Gergely - Veselý, J. - Nishimoto, S. - Yamasaki, M. - Kawamura, Y.
The microstructure and anisotropic deformation behavior of rapidly solidified ribbon consolidated Mg-Zn-X (X = Y, Gd, Nd) alloys.
Journal of Alloys and Compounds. Roč. 944, MAY (2023), č. článku 169175. ISSN 0925-8388. E-ISSN 1873-4669
R&D Projects: GA MŠMT LM2018111
Institutional support: RVO:61389005
Keywords : Mg-Zn-based alloys * Rapid solidification * Microstructure * Mechanical properties * Anisotropy
OECD category: Materials engineering
Impact factor: 6.2, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.jallcom.2023.169175

The paper describes the effect of the alloying elements (Y, Gd, and Nd) on the microstructure and resulting anisotropy of mechanical properties of Mg-Zn-based alloys prepared by the rapidly solidified ribbon con-solidation technique. Material processing leads to the formation of a microstructure consisting of ultrafine dynamically recrystallized (DRX) alpha-Mg grains and worked non-DRX grains. In general, the small average grain size and overall weak texture, caused by the random orientation of small DRX grains, resulted in relatively high yield strength and moderate elongation during both tensile and compressive loading. Moreover, a reverse tension-compression yield asymmetry was achieved in the investigated alloys thanks to the microstructure features of the investigated alloys, namely the presence of different types of precipitates and/or cluster-arranged layers (CALs) of solute atoms-rich stacking faults in the alpha-Mg matrix.
Permanent Link: https://hdl.handle.net/11104/0341733