[HTML][HTML] High resolution pore size analysis in metallic powders by X-ray tomography

K Heim, F Bernier, R Pelletier, LP Lefebvre - Case Studies in …, 2016 - Elsevier
The deployment of additive manufacturing processes relies on part quality, specifically the
absence of internal defects. Some of those defects have been associated with porosities in …

Additive manufacturing powder feedstock characterization using X-ray tomography

F Bernier, R Tahara, M Gendron - Metal Powder Report, 2018 - magonlinelibrary.com
To answer the need for efficient quality control protocols for additive manufacturing
processes and materials, specific testing methods for powder feedstocks should be …

[HTML][HTML] Effects of defects on mechanical properties in metal additive manufacturing: A review focusing on X-ray tomography insights

A Du Plessis, I Yadroitsava, I Yadroitsev - Materials & Design, 2020 - Elsevier
X-ray tomography has emerged as a uniquely powerful and non-destructive tool to analyze
defects in additive manufacturing. Defects include unintended porosity, rough surfaces and …

Investigation of pore structure in cobalt chrome additively manufactured parts using X-ray computed tomography and three-dimensional image analysis

FH Kim, SP Moylan, EJ Garboczi, JA Slotwinski - Additive Manufacturing, 2017 - Elsevier
Pore structures of additively manufactured metal parts were investigated with X-ray
Computed Tomography (XCT). Disks made of a cobalt-chrome alloy were produced using …

Computed tomography based procedure for reproducible porosity measurement of additive manufactured samples

T Zikmund, J Šalplachta, A Zatočilová, A Břínek… - NDT & E …, 2019 - Elsevier
Metallic parts made by selective laser melting technology are evaluated for internal porosity.
The non-standardized pores segmentation is one of the key aspects to apply in order to …

Application of serial sectioning to evaluate the performance of x-ray computed tomography for quantitative porosity measurements in additively manufactured metals

BR Jolley, MD Uchic, D Sparkman, M Chapman… - JOM, 2021 - Springer
This study presents a correlative characterization of internal porosity within a Ti-6Al-4V
(Ti64) additively manufactured sample. An x-ray computed tomography (XCT) reconstruction …

Not all scans are equal: X-ray tomography image quality evaluation

A Du Plessis, M Tshibalanganda… - Materials Today …, 2020 - Elsevier
X-ray microtomography is widely used in materials science and engineering applications for
imaging and analysis of material structure and morphology. For this purpose, and especially …

Quantitative X-ray tomography

E Maire, PJ Withers - International materials reviews, 2014 - Taylor & Francis
X-ray computer tomography (CT) is fast becoming an accepted tool within the materials
science community for the acquisition of 3D images. Here the authors review the current …

X-ray computed tomography for metal additive manufacturing: challenges and solutions for accuracy enhancement

F Zanini, E Sbettega, S Carmignato - Procedia Cirp, 2018 - Elsevier
Additively manufactured parts are characterized by metrological challenges and
complexities, due to several reasons, including the inherent presence of internal defects and …

On the use of X-ray microtomography to control artificial defect geometries produced by metal additive manufacturing

J Lesseur, B Tranchand, T Mancier… - Nondestructive …, 2022 - Taylor & Francis
In the field of metal additive manufacturing (AM), defect control and monitoring is a crucial
issue regarding recent developments for aeronautics and aerospace applications …