Extreme abnormal grain growth: connecting mechanisms to microstructural outcomes
If variety is the spice of life, then abnormal grain growth (AGG) may be the materials
processing equivalent of sriracha sauce. Abnormally growing grains can be prismatic …
processing equivalent of sriracha sauce. Abnormally growing grains can be prismatic …
Computational modeling of grain boundary segregation: A review
Nearly all metals, alloys, ceramics, and their associated composites are polycrystalline in
nature, with grain boundaries that separate well-defined crystalline regions that influence …
nature, with grain boundaries that separate well-defined crystalline regions that influence …
Spinodal decomposition in nanocrystalline alloys
For more than half a century, spinodal decomposition has been a key phenomenon in
considering the formation of secondary phases in alloys. The most prominent aspect of the …
considering the formation of secondary phases in alloys. The most prominent aspect of the …
Correlation between stabilizing and strengthening effects due to grain boundary segregation in iron-based alloys: Theoretical models and first-principles calculations
HR Peng, WT Huo, W Zhang, Y Tang, S Zhang… - Acta Materialia, 2023 - Elsevier
Grain boundary (GB) segregation can drastically affect both the thermal stability and fracture
strength of nanocrystalline metals. Underlying physics of the correlation between the above …
strength of nanocrystalline metals. Underlying physics of the correlation between the above …
Synergistic effects of solutes on active deformation modes, grain boundary segregation and texture evolution in Mg-Gd-Zn alloys
Synergistic effects of rare earth elements (RE) and Zn have a major impact on the properties
of ternary Mg-RE-Zn alloys. This study illuminates their dependence on the solute ratio by …
of ternary Mg-RE-Zn alloys. This study illuminates their dependence on the solute ratio by …
Atomistic and machine learning studies of solute segregation in metastable grain boundaries
The interaction of alloying elements with grain boundaries (GBs) influences many
phenomena, such as microstructural evolution and transport. While GB solute segregation …
phenomena, such as microstructural evolution and transport. While GB solute segregation …
Quantitative analysis of grain boundary diffusion, segregation and precipitation at a sub-nanometer scale
Grain boundaries are intrinsic and omnipresent microstructural imperfections in
polycrystalline and nanocrystalline materials. They are short-circuit diffusion paths and …
polycrystalline and nanocrystalline materials. They are short-circuit diffusion paths and …
Triple Junction Segregation Dominates the Stability of Nanocrystalline Alloys
We present large-scale atomistic simulations that reveal triple junction (TJ) segregation in Pt–
Au nanocrystalline alloys in agreement with experimental observations. While existing …
Au nanocrystalline alloys in agreement with experimental observations. While existing …
Atomistic structures of< 0001> tilt grain boundaries in a textured Mg thin film
Nanocrystalline Mg was sputter deposited onto an Ar ion etched Si {100} substrate. Despite
an∼ 6 nm amorphous layer found at the interface, the Mg thin film exhibits a sharp basal …
an∼ 6 nm amorphous layer found at the interface, the Mg thin film exhibits a sharp basal …
Atomic-scale investigation of Pt composition on deformation mechanism of AuPt alloy during nano-scratching process
In this research, we performed molecular dynamics (MD) simulation to investigate the
material removal mechanism and subsurface damage formation during nano-scratching of …
material removal mechanism and subsurface damage formation during nano-scratching of …