Ductile rupture in metals is a phenomenon that affects a wide range of applications from
forming of automotive body panels to failure of pressure vessels. The incipient stage …

The breakdown from grain-size strengthening to softening mechanisms is generally well
understood for high-purity nanocrystalline materials when the mean grain size decreases to …

Grain size engineering, particularly reducing grain size into the nanocrystalline regime,
offers a promising pathway to further improve the strength-to-weight ratio of Al alloys …

Strain localization is a common deformation induced instability in many nanograined metals.
Gradient nanograined metals are known to suppress the strain localization by inner coarse …

Lightweighting of structural materials has proven indispensable in the energy economy,
predicated on alloy design with high strength-to-weight ratios. Modern aluminum alloys have …

Crystalline metals generally exhibit good deformability but low strength and poor irradiation
tolerance. Amorphous materials in general display poor deformability but high strength and …

Recovery of cold worked metals is associated with a loss of strength due to the reduction of
the defect density. However, already in the 1960s analytical models and few experiments …

The low toughness and structural stability of nanostructured materials are strongly related to
the numerous grain boundaries and interfaces. Among other design stratgies, the use of low …

High performance structural materials with combinations of excellent yet often mutually
exclusive properties such as high yield strength, ductility and thermal stability are primarily …

Reducing the grain size into the nanoscale regime in metallic materials provides high
mechanical strengths, however at the cost of degrading thermal stability, as grain refinement …