Grain structure control is challenging for metal additive manufacturing (AM). Grain structure
optimization requires the control of grain morphology with grain size refinement, which can …

A multiscale model is developed to investigate the evolution mechanisms of site-specific
grain structures during additive manufacturing (AM) of metallic alloys, using the selective …

The properties and serviceability of 3D-printed metal parts depend on a variety of attributes.
These include the chemical composition, phases, morphology, spatial distributions of grain …

Grain refinement is one of the most effective approaches to improving mechanical
properties, reducing anisotropy and hot-cracking of additively manufactured alloys. Recent …

Additive manufacturing (AM) is a new and promising production methodology adept at
producing complex geometries, which can be optimized for lower weight and enhanced …

The columnar to equiaxed transition (CET) of grain structures associated with processing
conditions has been observed during metallic additive manufacturing (AM). However, the …

Preventing columnar grain formation during additive manufacturing has become a
significant challenge. Columnar grains are generally regarded as unfavourable as their …

As a revolutionary industrial technology, additive manufacturing creates objects by adding
materials layer by layer and hence can fabricate customized components with an …

Gaussian laser intensity profiles are standard in laser-based metal additive manufacturing,
although recent work in single-layer melt tracks showed that beam shaping could offer a …

Additive manufacturing, also known as 3D printing, overcomes many design and
manufacturing constraints to allow almost direct production of metals into complicated …