A5030366694- Microstructure and mechanical properties
- Fusion materials and technologies
- Microstructure and Mechanical Properties of Steels
- Hydrogen embrittlement and corrosion behaviors in metals
- Ion-surface interactions and analysis
- Nuclear Materials and Properties
- Advanced Materials Characterization Techniques
- Magnesium Alloys: Properties and Applications
- Metal and Thin Film Mechanics
- Magnetic Properties of Alloys
- Electron and X-Ray Spectroscopy Techniques
Universitat Politècnica de Catalunya
2020-2022
The M4F project brings together the fusion and fission materials communities working on prediction of radiation damage production evolution their effects mechanical behaviour irradiated ferritic/martensitic (F/M) steels. It is a multidisciplinary in which several different experimental computational science tools are integrated to understand model complex phenomena associated with formation irradiation induced defects macroscopic target materials. In particular focuses two specific aspects:...
Tilt ${112}$ grain boundaries (GBs) in bcc metals perform shear-coupled grain-boundary migration by the creation and glide of disconnections. Disconnection dipoles may be created at pristine GB high stresses or generated core a dislocation that acts as source We characterize this terms its Burgers vector, denoted ${\stackrel{P\vec}{b}}_{1/\ensuremath{-}1}$, describe mechanism allows to move conservatively with GB. The ${\stackrel{P\vec}{b}}_{1/\ensuremath{-}1}$ is created, for instance,...
The sustainability and capacity of macroscopic deformation by polycrystalline metals metallic alloys is controlled the propagation dislocation-mediated slip through grains. In this paper, interaction a pileup $1/2\ensuremath{\langle}111\ensuremath{\rangle}$ dislocations with ${332}$ tilt grain boundary (GB) studied as function temperature in three bcc metals: iron (Fe), chromium (Cr), tungsten (W). results transformation crystal dislocation into GB dislocations. absorbs pileup, neither...
The most abundant deformation twins in metals with hcp and bcc crystallographic structures, i. e. (10-12) (112) respectively, proceed the same mechanism of under an applied shear stress, shear-coupled twin boundary migration. Despite differences atomic structure degrees symmetry crystals, topological aspects that rule processes growth shrinkage these are equivalent. In this paper, we revisit level processes, occurring at interfaces, through which both coherent boundaries displace a...
The $\mathrm{\ensuremath{\Sigma}}3{112}$ tilt grain boundary (GB) is found in many grains bcc polycrystalline metals due to its low energy and high stability. Moreover, it the coherent of ${112}$ twin. This paper studies interaction a pileup $1/2\ensuremath{\langle}111\ensuremath{\rangle}$ dislocations with GB, extendable twin (TB). results are applied interacting dislocation transformed into GB (or TB dislocation) that acts as source disconnections responsible for shear-coupled migration...
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
It is possible for $\ensuremath{\langle}110\ensuremath{\rangle}$ tilt grain boundaries (GBs) in bcc metals to perform a conservative displacement by the glide of intrinsic GB line defects, namely, disconnections. The paper presents characteristic these defects ${112}$ and ${332}$ twin boundaries, their vicinal GBs, ${116}$ studied molecular dynamics simulation. sources disconnections interaction with other dislocations are described together role shear-coupled migration. absence gliding...