Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy

Single track and single layer AlSi10Mg has been produced by selective laser melting (SLM) of alloy powder on a AlSi12 cast substrate. The SLM technique produced a cellular-dendritic ultra-fined grained microstructure. Chemical composition mapping and nanoindentation showed higher hardness in the SL...

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Main Authors: Everitt, Nicola M, Aboulkhair, Nesma T., Maskery, Ian, Tuck, Christopher, Ashcroft, Ian
Format: Article
Published: VBRI Press 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/35335/
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author Everitt, Nicola M
Aboulkhair, Nesma T.
Maskery, Ian
Tuck, Christopher
Ashcroft, Ian
author_facet Everitt, Nicola M
Aboulkhair, Nesma T.
Maskery, Ian
Tuck, Christopher
Ashcroft, Ian
author_sort Everitt, Nicola M
building Nottingham Research Data Repository
collection Online Access
description Single track and single layer AlSi10Mg has been produced by selective laser melting (SLM) of alloy powder on a AlSi12 cast substrate. The SLM technique produced a cellular-dendritic ultra-fined grained microstructure. Chemical composition mapping and nanoindentation showed higher hardness in the SLM material compared to its cast counterpart. Importantly, although there was some increase of grain size at the edge of melt pools, nanoindentation showed that the hardness (i.e. yield strength) of the material was uniform across overlapping tracks. This is attributed to the very fine grain size and homogeneous distribution of Si throughout the SLM material.
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publishDate 2016
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spelling nottingham-353352020-05-04T17:32:28Z https://eprints.nottingham.ac.uk/35335/ Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy Everitt, Nicola M Aboulkhair, Nesma T. Maskery, Ian Tuck, Christopher Ashcroft, Ian Single track and single layer AlSi10Mg has been produced by selective laser melting (SLM) of alloy powder on a AlSi12 cast substrate. The SLM technique produced a cellular-dendritic ultra-fined grained microstructure. Chemical composition mapping and nanoindentation showed higher hardness in the SLM material compared to its cast counterpart. Importantly, although there was some increase of grain size at the edge of melt pools, nanoindentation showed that the hardness (i.e. yield strength) of the material was uniform across overlapping tracks. This is attributed to the very fine grain size and homogeneous distribution of Si throughout the SLM material. VBRI Press 2016-01-12 Article PeerReviewed Everitt, Nicola M, Aboulkhair, Nesma T., Maskery, Ian, Tuck, Christopher and Ashcroft, Ian (2016) Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy. Advanced Materials Letters, 7 (1). pp. 13-16. ISSN 0976-3961 Nanoindentation; additive manufacturing; aluminium alloy https://www.researchgate.net/publication/289229850_Nanoindentation_shows_uniform_local_mechanical_properties_across_melt_pools_and_layers_produced_by_selective_laser_melting_of_AlSi_10Mg_alloy doi:10.5185/amlett.2016.6171 doi:10.5185/amlett.2016.6171
spellingShingle Nanoindentation; additive manufacturing; aluminium alloy
Everitt, Nicola M
Aboulkhair, Nesma T.
Maskery, Ian
Tuck, Christopher
Ashcroft, Ian
Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy
title Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy
title_full Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy
title_fullStr Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy
title_full_unstemmed Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy
title_short Nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of AlSi10Mg alloy
title_sort nanoindentation shows uniform local mechanical properties across melt pools and layers produced by selective laser melting of alsi10mg alloy
topic Nanoindentation; additive manufacturing; aluminium alloy
url https://eprints.nottingham.ac.uk/35335/
https://eprints.nottingham.ac.uk/35335/
https://eprints.nottingham.ac.uk/35335/