Utilizing atomic-scale grain boundary segregation: a new way for constructing the lamellar heterogeneous magnesium alloy
Year: 2025
Type: article
Abstract: Heterogeneous structure significantly impacts the applications of wrought magnesium (Mg) alloys. Herein, we put forward a novel idea for constructing the heterogeneous structure by utilizing solute grain boundary (GB) segregation on recrystallization behavior during hot extrusion. The formation of heterogeneous structure is primarily attributed to the solute drag pressure (Al, Zn, and Ca), increasing solute atom levels co-segregation in GB, and the activation of non-basal dislocations, which contribute to hindering continuous dynamic recrystallization. This study highlights the multi-scale solute atom GB segregation behavior and provides new insights into GB segregation-induced heterogeneous structural transition in Mg alloy.
Source: Materials Research Letters
Authors: Hansong Xue, Yang Zhou, Zengjun Wei, Ming Zhang, Jun Li, Ying Liu, Jia She, Jia Hu, Bin Jiang
Institution: Chongqing University
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,459
Awards: G4325426895, G503867920
OpenAlex ID: W4414376782