Research on the ordered phase boundaries on mechanical properties and tensile damage of dual-phase nickel-based polycrystals based on molecular dynamics

Quantitative analysis of stress/strain partitioning between soft and hard phases during deformation of multi-phased materials

Under the growing demands of higher strength on structural materials, microstructures of advanced high-strength metallic alloys have become increasingly complex. The microstructures are in many cases composed of multi phases having different mechanical properties, i.e., strength and ductility. In the present study, we...

Role of amorphous phase in phase transformation of nanograined NiTi alloy: Insights from molecular dynamics simulations

This study employs molecular dynamics simulations to investigate how amorphous layer thickness affects martensitic transformation in homogeneous and gradient nanograined (NG and GNG) NiTi shape memory alloys (SMAs). Amorphous-homogeneous nanograined and amorphous-gradient nanograined models are constructed to examine t...

Molecular Dynamics Study on the Inverse Hall-Petch Relationship in Nano-Polycrystalline Al-Zn-Mg Alloys.

Nanocrystalline Al-Zn-Mg alloys are pivotal for next-generation aerospace and automotive applications that require superior strength-to-weight ratios. However, optimizing their mechanical properties at the atomic scale remains a challenge because classical strengthening theories break down. This study employs molecular...

Void dominated fracture and plastic localization in Cu/Al laminated composites revealed by molecular dynamics simulations

Cu/Al laminated composites are promising for lightweight conductive and thermal-management applications, but tensile reliability is strongly affected by deformation incompatibility and damage localization near heterogeneous interfaces. Molecular dynamics simulations were performed to reveal the void-dominated fracture...

Effect of Plastic Deformation on the Microstructure and Mechanical Properties of an Al-Li-Cu-Mg Alloy after Aging

Tensile Deformation of Ni/Ti Multilayers: Coupled Effects of Modulation Period and Strain Rate from Molecular Dynamics Simulations

The mechanical response of Ni/Ti multilayers is governed by the interplay between interface-mediated deformation and structural transformations in the constituent layers. Here, molecular dynamics simulations are used to investigate the tensile deformation of planar Ni/Ti multilayers with modulation periods of 28.6 nm –...