Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography

Maskery, Ian; Aboulkhair, N.T.; Corfield, M.R.; Tuck, Christopher; Clare, A.T.; Leach, Richard K.; Wildman, Ricky D.; Ashcroft, Ian; Hague, Richard J.M.

doi:10.1016/j.matchar.2015.12.001

All Outputs (7)

Assessing the capability of in-situ nondestructive analysis during layer based additive manufacture (2016)
Journal Article

Unlike more established subtractive or constant volume manufacturing technologies, additive manufacturing methods suffer from a lack of in-situ monitoring methodologies which can provide informationrelating to process performance and the formation of... Read More about Assessing the capability of in-situ nondestructive analysis during layer based additive manufacture.

Surface modification of mild steel using a combination of laser and electrochemical processes (2016)
Journal Article

Traditional methods for achieving hierarchical surface structures include highly specified, deterministic approaches to create features to meet design intention. In this study microstructural alteration was undertaken using laser apparatus and second... Read More about Surface modification of mild steel using a combination of laser and electrochemical processes.

In-situ synthesis of titanium aluminides by direct metal deposition (2016)
Journal Article

This study explores the capabilities of methods for in-situ synthesis of titanium aluminides using the Direct Metal Deposition process. This allows for the functional grading of components which will be required for next generation aerospace componen... Read More about In-situ synthesis of titanium aluminides by direct metal deposition.

Loose powder detection and surface characterization in selective laser sintering via optical coherence tomography (2016)
Journal Article

Defects produced during selective laser sintering (SLS) are difficult to non-destructively detect after build completion without the use of X-ray-based methods. Overcoming this issue by assessing integrity on a layer-by-layer basis has become an area... Read More about Loose powder detection and surface characterization in selective laser sintering via optical coherence tomography.

Machining of additively manufactured parts: implications for surface integrity (2016)
Journal Article

Additive manufacturing methods continue to move towards production ready technologies with the widely extolled virtues of rapid transition from design to part and enhanced design freedoms. However, due to fundamental limitations of laser based proces... Read More about Machining of additively manufactured parts: implications for surface integrity.

Spatially resolved acoustic spectroscopy for selective laser melting (2016)
Journal Article

Additive manufacturing (AM) is a manufacturing technique that typically builds parts layer by layer, for example, in the case of selective laser melted (SLM) material by fusing layers of metal powder. This allows the construction of complex geometry... Read More about Spatially resolved acoustic spectroscopy for selective laser melting.

Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography (2016)
Journal Article

We used X-ray computed tomography (CT), microscopy and hardness measurements to study Al–Si10–Mg produced by selective laser melting (SLM). Specimens were subject to a series of heat treatments including annealing and precipitation hardening. The spe... Read More about Quantification and characterisation of porosity in selectively laser melted Al–Si10–Mg using x-ray computed tomography.