Publications de Rasool Ahmad | EPFL Graph Search

Design of Ductile Rare-Earth-Free Magnesium Alloys

William Curtin, Binglun Yin, Zhaoxuan Wu, Rasool Ahmad

Pure Mg has low ductility due to a transition of < c+a > pyramidal dislocations to a sessile basal-oriented structure. Dilute alloying generally improves ductility. Enhancement of pyramidal cross-slip from the lower-energy pyramidal II plane to the higher- ...

SPRINGER INTERNATIONAL PUBLISHING AG2020

Analysis of double cross-slip of pyramidal I < c plus a > screw dislocations and implications for ductility in Mg alloys

William Curtin, Zhaoxuan Wu, Rasool Ahmad

Solute accelerated cross-slip of pyramidal < c + a > screw dislocations has recently been recognized as a crucial mechanism in enhancing the ductility of solid-solution Mg alloys. In pure Mg, cross-slip is ineffective owing to the energy difference between ...

PERGAMON-ELSEVIER SCIENCE LTD2020

Atomic Scale Investigations into the Origins of Ductility in Mg Alloys

Rasool Ahmad

The industrial applications of Mg, the lightest structural metal, and abundant in Earth's crust, are hampered by its low intrinsic ductility and low fracture toughness at room temperature which is attributed to the underlying less symmetric and plastically ...

EPFL2020

Designing high ductility in magnesium alloys

William Curtin, Binglun Yin, Zhaoxuan Wu, Rasool Ahmad

The thermally activated pyramidal-to-basal (PB) transition of (c + a) dislocations, transforming glissile pyramidal dissociated core structures into sessile basal dissociated ones, lies at the origin of low ductility in pure magnesium (Mg). Solute-accelera ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Rasool Ahmad

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Design of Ductile Rare-Earth-Free Magnesium Alloys

Analysis of double cross-slip of pyramidal I < c plus a > screw dislocations and implications for ductility in Mg alloys

Atomic Scale Investigations into the Origins of Ductility in Mg Alloys

Designing high ductility in magnesium alloys

Mechanistic origin and prediction of enhanced ductility in magnesium alloys

Modified embedded-atom method interatomic potential for Mg-Y alloys

Pyramidal II to basal transformation of 'c plus a' edge dislocations in Mg-Y alloys

Design of Ductile Rare-Earth-Free Magnesium Alloys

Atomic Scale Investigations into the Origins of Ductility in Mg Alloys

Modified embedded-atom method interatomic potential for Mg-Y alloys

Analysis of double cross-slip of pyramidal I < c plus a > screw dislocations and implications for ductility in Mg alloys

Designing high ductility in magnesium alloys

Mechanistic origin and prediction of enhanced ductility in magnesium alloys

Pyramidal II to basal transformation of 'c plus a' edge dislocations in Mg-Y alloys