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Nano-hardness and microstructure of selective laser melted AlSi10Mg scan tracks

Aboulkhair, Nesma T.; Tuck, Christopher; Maskery, Ian; Ashcroft, Ian; Everitt, Nicola

Authors

IAN ASHCROFT Ian.Ashcroft@nottingham.ac.uk
Professorof Mechanics of Solids

Nicola Everitt



Abstract

Selective laser melting (SLM) of aluminium alloys faces more challenges than other ongoing alloys such as stainless steels and titanium alloys because of the material’s properties. It is important to study single scan tracks if high density large parts are to be made since they are the primary building blocks. In this study, the geometrical features of AlSi10Mg tracks indicated keyhole mode melting domination. Chemical composition mapping and nanoindentation showed enhanced nano-hardness in SLM material over conventional material with no spatial variation. This is due to a homogeneous elemental distribution and fine microstructure developed by fast solidification.

Publication Date Jul 1, 2015
Electronic ISSN 0277786X
Peer Reviewed Peer Reviewed
Volume 9657
Book Title Industrial Laser Applications Symposium (ILAS 2015)
APA6 Citation Aboulkhair, N. T., Tuck, C., Maskery, I., Ashcroft, I., & Everitt, N. (2015). Nano-hardness and microstructure of selective laser melted AlSi10Mg scan tracks. In Industrial Laser Applications Symposium (ILAS 2015). https://doi.org/10.1117/12.2190015
DOI https://doi.org/10.1117/12.2190015
Publisher URL http://dx.doi.org/10.1117/12.2190015
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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