A. Serra
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View article: On the capabilities of k-ART over MD for the study of the kinetics of small point defect clusters in α-Fe
On the capabilities of k-ART over MD for the study of the kinetics of small point defect clusters in α-Fe Open
Molecular Dynamics simulations, while contributing to the understanding of the mechanisms of diffusion and interactions of point defects and their clusters, are inherently limited in their temporal scope (few nanoseconds). This constraint …
View article: Interaction of a dislocation pileup with {332} tilt grain boundary in bcc metals studied by MD simulations
Interaction of a dislocation pileup with {332} tilt grain boundary in bcc metals studied by MD simulations Open
The sustainability and capacity of macroscopic deformation by polycrystalline metals and metallic alloys is controlled by the propagation of dislocation-mediated slip through grains. In this paper, the interaction of a pileup of 1/2¿111¿ d…
View article: Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms
Review of Non-Classical Features of Deformation Twinning in hcp Metals and Their Description by Disconnection Mechanisms Open
The study of deformation twinning has long history. However new, sometimes surprising, findings have shown that the phenomenon of deformation twinning still is not completely understood. During recent years, some debates are taking place i…
View article: On the common topological conditions for shear-coupled twin boundary migration in bcc and hcp metals
On the common topological conditions for shear-coupled twin boundary migration in bcc and hcp metals Open
The most abundant deformation twins in metals with hcp and bcc crystallographic structures, i. e. (10-12) and (112) respectively, proceed with the same mechanism of deformation under an applied shear stress, i. e. shear-coupled twin bounda…
View article: Dislocation Structure and Mobility in Hcp Rare-Gas Solids: Quantum versus Classical
Dislocation Structure and Mobility in Hcp Rare-Gas Solids: Quantum versus Classical Open
We study the structural and mobility properties of edge dislocations in rare-gas crystals with the hexagonal close-packed (hcp) structure by using classical simulation techniques. Our results are discussed in the light of recent experiment…
View article: On the relationship between and conjugate twins and double extension twins in rolled pure Mg
On the relationship between and conjugate twins and double extension twins in rolled pure Mg Open
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Philosophical Magazine on February 2017, available online at: http://www.tandfonline.com/10.1080/14786435.2017.1290846
View article: Atomic displacements accompanying deformation twinning: shears and shuffles
Atomic displacements accompanying deformation twinning: shears and shuffles Open
Deformation twins grow by the motion of disconnections along their interfaces, thereby coupling shear with migration. Atomic-scale simulations of this mechanism have advanced to the point where the trajectory of each atom can be followed a…
View article: Evolution of Matrix-Twin Interfaces of (1012) Twin in Magnesium
Evolution of Matrix-Twin Interfaces of (1012) Twin in Magnesium Open
Recently, the presence of basal-prismatic interfaces in hexagonal close packed metals became subject of intensive investigation. We model the {101¯2} twin in magnesium bounded by two types of boundaries, i.e. {101¯2} interface and basal-pr…