A study on the laser spatter and the oxidation reactions during selective laser melting of 316L stainless steel, Al-Si10-Mg, and Ti-6Al-4V

Simonelli, Marco and Tuck, Christopher and Aboulkhair, Nesma T. and Maskery, Ian and Ashcroft, Ian and Wildman, Ricky D. and Hague, Richard J.M. (2015) A study on the laser spatter and the oxidation reactions during selective laser melting of 316L stainless steel, Al-Si10-Mg, and Ti-6Al-4V. Metallurgical and Materials Transactions A, 46 (9). pp. 3842-3851. ISSN 1543-1940

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Abstract

The creation of an object by selective laser melting (SLM) occurs by melting contiguous areas of a powder bed according to a corresponding digital model. It is therefore clear that the success of this metal Additive Manufacturing (AM) technology relies on the comprehension of the events that take place during the melting and solidification of the powder bed. This study was designed to understand the generation of the laser spatter that is commonly observed during SLM and the potential effects that the spatter has on the processing of 316L stainless steel, Al-Si10-Mg, and Ti-6Al-4V. With the exception of Ti-6Al-4V, the characterization of the laser spatter revealed the presence of surface oxides enriched in the most volatile alloying elements of the materials. The study will discuss the implication of this finding on the material quality of the built parts.

Item Type: Article
Additional Information: The final publication is available at Springer via http://dx.doi.org/10.1007/s11661-015-2882-8
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Chemical and Environmental Engineering
University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: 10.1007/s11661-015-2882-8
Depositing User: Eprints, Support
Date Deposited: 08 Aug 2017 10:20
Last Modified: 08 Aug 2017 10:20
URI: http://eprints.nottingham.ac.uk/id/eprint/44745

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