Work

Study of microstructural characterization & molecular dynamics evolution of temperature and strain rate effect on tensile properties of Mg-Zn-Nd alloy

Year: 2025

Type: article

Abstract: Magnesium alloys are lightweight structural materials with high strength to weight ratios making them attractive for some applications. Alloying with Zn and rare earth elements like Nd enhances mechanical properties and thermal stability broadening their potential in load bearing components. The tensile performance of a Mg 97 %-Zn 2 %-Nd 1 % alloy was modelled in this study using Molecular Dynamics Simulation using LAMMPS. The realistic lattice parameters used in the simulation's crystalline structure were obtained from X-ray diffraction of a comparable Mg 98 %-Zn 2 %-Nd 1 % alloy. The study looked at the effects of different strain rates (0.001–0.009 ps −1 ) and temperatures (300 K to 500 K) on the alloy's tensile characteristics. Additionally Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS) confirmed the presence of the α-Mg matrix supporting alloys phase distribution used in the simulation framework. Insights from this study and dislocation growth analysis suggest that the tensile properties of alloy increased with the increase in strain rates and decrease in temperature. Findings from this work provide a base for optimizing this alloy for high performance structural applications under specific conditions.

Source: Materials Today Communications

DOI: 10.1016/j.mtcomm.2025.114496

Authors: Tonmoy Chowdhury, Md Zahidul Islam, Avik Muhury, Sazzad Ahmad, Fahmida Gulshan

Institutions: Bangladesh University of Engineering and Technology, Chittagong University of Engineering & Technology

Language: English

Topic: Magnesium Alloys: Properties and Applications

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,830

Funder: Bangladesh University of Engineering and Technology