Publications (7)
Chemical inhomogeneities in high-entropy alloys help mitigate the strength-ductility trade-off
Evan Ma, Chang Liu
Metallurgists have long been accustomed to a trade-off between yield strength and tensile ductility. Extending previously known strain-hardening mechanisms, the emerging multi-prin…
Predicting the propensity for thermally activated events in metallic glasses via interpretable machine learning
Qi Wang, Jun Ding, Evan Ma
The elementary excitations in metallic glasses (MGs), i.e., processes that involve hopping between nearby sub-basins, underlie many unusual properties of the amorphous alloys.…
Predicting orientation-dependent plastic susceptibility from static structure in amorphous solids via deep learning
Zhao Fan, Evan Ma
It has been a long-standing materials science challenge to establish structure-property relations in amorphous solids. Here we introduce a rotation-variant local structure represen…
Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways
Qing-Jie Li, Howard Sheng, Evan Ma
High-entropy alloys (HEAs) were presumed to have a configurational entropy as high as that of an ideally mixed solid solution (SS) of multiple elements in near-equal proportions. H…
Second-Nearest-Neighbor Correlations from Connection of Atomic Packing Motifs in Metallic Glasses and Liquids
Jun Ding, Evan Ma, Mark Asta +1
Using molecular dynamics simulations, we have studied the atomic correlations characterizing the second peak in the radial distribution function (RDF) of metallic glasses and liqui…
Highly Deformable and Mobile Palladium Nanocrystals as Efficient Carbon Scavengers
Peng-Han Lu, De-Gang Xie, Bo-Yu Liu +7
Fouling of surfaces leads to performance degradation in many energy-intensive industrial processes, but the present solutions are either too complicated to be routinely used or inc…
Intrinsic shear transformations in metallic glasses
Zhen Zhang, Jun Ding, Evan Ma
Plastic flow in amorphous solids is known to be carried by localized shear transformations (STs) which have been proposed to preferentially initiate from some defect units in the s…