Metals with nanocrystalline grains have ultrahigh strengths approaching two gigapascals.
However, such extreme grain-boundary strengthening results in the loss of almost all tensile …

Additively manufactured (AM) metallic materials commonly possess substantial microscale
internal stresses that manifest as intergranular and intragranular residual stresses. However …

As-processed metals and alloys by selective laser melting (SLM), or laser powder bed fusion
(L-PBF), are often full of defects and flaws such as dislocations, twins, elemental …

The strength of nanocrystalline and nanotwinned metals stops increasing or even starts
decreasing when their grain size or twin thickness is below a critical size—a phenomenon …

Coherent twin boundaries (CTBs) are widely described, both theoretically and
experimentally, as perfect interfaces that play a significant role in a variety of materials …

We have revealed the fundamental embryonic structure of deformation twins using in situ
mechanical testing of magnesium single crystals in a transmission electron microscope. This …

This article briefly summarizes the extensive information now available, from recent
experiments and theoretical models, addressing the enhanced tensile ductility of …

Ultrafine-grained pure metals and their alloys have high strength and low ductility. In this
study, cryorolling under different strains followed by low-temperature short-time annealing …

This work reports additive manufacturing of nickel-aluminum-bronze alloys by electron beam
powder bed fusion (EB-PBF), with a relatively homogeneous microstructure at the micro-to …

Abstract Crystalline/amorphous (C/A) metallic nanolaminates have been increasingly
studied due to its excellent mechanical behaviors. Here, the effects of layer thickness and …