In-situ synchrotron X-ray analysis of metal Additive Manufacturing: current state, opportunities and challenges
C V Ioannidou,Hans-Henrik König,Nick Semjatov,Ulf Ackelid,Peter Staron,Carolin Körner,Peter Hedström,Greta Lindwall +7 more
TLDR
In this article , the authors provide an overview of the research on metal PBF and DED using in-situ synchrotron X-ray imaging, diffraction and smallangle scattering, highlighting the state of the art, the instrumentation, the challenges and the gaps in knowledge that need to be filled.About:
This article is published in Materials & Design.The article was published on 2022-05-01 and is currently open access. It has received 11 citations till now. The article focuses on the topics: Synchrotron & Characterization (materials science).read more
Citations
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Powder bed fusion additive manufacturing of Ni-based superalloys: a review of the main microstructural constituents and characterization techniques
TL;DR: In this article , a review of the evolution of Ni-based superalloy microstructures during powder bed fusion (PBF) processes is presented, with an expressed goal of directing the research community toward the tools necessary for a thorough investigation of the processing-microstructure-property relationships in PBFNi-based microalloy parts to enable microstructural engineering.
Journal ArticleDOI
Process parameter sensitivity of the energy absorbing properties of additively manufactured metallic cellular materials
TL;DR: In this paper , the quasi-static and dynamic behavior of cellular materials manufactured from 316L stainless steel using laser powder bed fusion (LPBF) was investigated, and four cellular architectures were considered (octet lattice, lattice-walled square honeycomb, origami and squaresquare honeycomb), as well as three sets of AM process parameters, characterised by laser powers of 50, 125 and 200 W.
Journal ArticleDOI
In situ melt pool measurements for laser powder bed fusion using multi sensing and correlation analysis
Rongxuan Wang,David Pelegrin Garcia,Rakesh R. Kamath,Chao-Yin Dou,Bo Shen,Hahn Choo,Kamel Fezzaa,Hang Z. Yu,Zhen Kong +8 more
TL;DR: In this paper , an effective algorithm for high-speed X-ray imaging data was developed to identify melt pool geometries accurately. But the accuracy of the algorithm was limited due to the high computational complexity of the IR data.
Journal ArticleDOI
A Comparative Study on Mechanical Properties of Fully Dense 420 Stainless Steel Parts Produced by Modified Binder Jet Printing
TL;DR: In this paper , the authors compared the mechanical properties of the stainless steel 420 (SS420) parts produced by the several variations of this new protocol against commercially available cold-rolled SS420 parts with and without the heat-treatment under the similar sintering condition used in the new protocol.
Journal ArticleDOI
Solidification modes during additive manufacturing of steel revealed by high-speed X-ray diffraction
Hans-Henrik König,Niklas Pettersson,A Durga,S. Van Petegem,Daniel Grolimund,Andrew Chihpin Chuang,Qi Chao Guo,Lianyi Chen,C.K. Oikonomou,Fan Zhang,Greta Lindwall +10 more
TL;DR: In this article , high-speed X-ray diffraction measurements were performed to investigate the impact of the solidification velocities and thermal gradients on a hot-work tool steel over a wide range of thermal conditions of relevance to AM of metals.
References
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Additive manufacturing of metallic components – Process, structure and properties
Tarasankar Debroy,Huiliang Wei,J.S. Zuback,T. Mukherjee,John W. Elmer,John O. Milewski,Allison M. Beese,Alexander E. Wilson-Heid,Amitava De,Wei Zhang +9 more
TL;DR: A review of the emerging research on additive manufacturing of metallic materials is provided in this article, which provides a comprehensive overview of the physical processes and the underlying science of metallurgical structure and properties of the deposited parts.
Journal ArticleDOI
Additive manufacturing of metals
TL;DR: In this paper, the authors describe the complex relationship between additive manufacturing processes, microstructure and resulting properties for metals, and typical microstructures for additively manufactured steel, aluminium and titanium are presented.
Journal ArticleDOI
Residual stresses in selective laser sintering and selective laser melting
Peter Mercelis,Jean-Pierre Kruth +1 more
TL;DR: In this paper, a simple theoretical model is developed to predict residual stress distributions in selective laser sintering (SLS) and selective laser melting (SLM), aiming at a better understanding of this phenomenon.
Journal ArticleDOI
On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: Fatigue resistance and crack growth performance
Stefan Leuders,M. Thöne,Andre Riemer,Thomas Niendorf,Thomas Tröster,Hans Albert Richard,Hans Jürgen Maier +6 more
TL;DR: In this article, the microstructure-defect-property relationship under cyclic loading for a TiAl6V4 alloy processed by selective laser melting is investigated. And the results show that the micron sized pores mainly affect fatigue strength, while residual stresses have a strong impact on fatigue crack growth.
Journal ArticleDOI
Quantitative X-ray tomography
Eric Maire,Philip J. Withers +1 more
TL;DR: In this paper, the authors review the current state of the art as CT transforms from a qualitative diagnostic tool to a quantitative one, including the use of iterative reconstruction strategies suited to specific segmentation tasks and emerging methods that provide more insight than conventional attenuation based tomography.
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