Tensile Properties of AM Maraging steel

Additively Manufactured (AM) materials have great potential for producing graded materials, embedded structures and near net complex shapes. AM maraging steel properties have been compared with wrought maraging steel. The comparison featured interrupted tensile tests over a range of temperatures and...

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Main Authors: Church Philip, Reynolds Mark, Gould Peter, Oakley Robin, Harrison Nigel, Williamson Dave, Braithwaite Chris, Taylor Nick
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201818301058
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author Church Philip
Reynolds Mark
Gould Peter
Oakley Robin
Harrison Nigel
Williamson Dave
Braithwaite Chris
Taylor Nick
author_facet Church Philip
Reynolds Mark
Gould Peter
Oakley Robin
Harrison Nigel
Williamson Dave
Braithwaite Chris
Taylor Nick
author_sort Church Philip
collection DOAJ
description Additively Manufactured (AM) materials have great potential for producing graded materials, embedded structures and near net complex shapes. AM maraging steel properties have been compared with wrought maraging steel. The comparison featured interrupted tensile tests over a range of temperatures and strain rates. In addition a specially designed Tensile Split Hopkinson Pressure Bar (TSHPB) has been built to test very high strength metals at high strain rates. The results showed that the AM maraging steel was much more ductile than expected and exhibited significant necking under all conditions tested. All the samples exhibited ductile fracture. Although not as ductile as the wrought material, the AM material could be cost effective through economies of scale for complex components. The microstructure contained inclusions which derived from either the powder or the AM process and thus there is significant potential to improve these materials further. A modified Armstrong-Zerilli model was also constructed for these materials and shown to predict the raw experimental data within experimental error using DYNA3D simulations.
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spelling doaj.art-54b3615bc7ca44e09919743974f932ab2022-12-21T23:29:05ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011830105810.1051/epjconf/201818301058epjconf_dymat2018_01058Tensile Properties of AM Maraging steelChurch PhilipReynolds MarkGould PeterOakley RobinHarrison NigelWilliamson DaveBraithwaite ChrisTaylor NickAdditively Manufactured (AM) materials have great potential for producing graded materials, embedded structures and near net complex shapes. AM maraging steel properties have been compared with wrought maraging steel. The comparison featured interrupted tensile tests over a range of temperatures and strain rates. In addition a specially designed Tensile Split Hopkinson Pressure Bar (TSHPB) has been built to test very high strength metals at high strain rates. The results showed that the AM maraging steel was much more ductile than expected and exhibited significant necking under all conditions tested. All the samples exhibited ductile fracture. Although not as ductile as the wrought material, the AM material could be cost effective through economies of scale for complex components. The microstructure contained inclusions which derived from either the powder or the AM process and thus there is significant potential to improve these materials further. A modified Armstrong-Zerilli model was also constructed for these materials and shown to predict the raw experimental data within experimental error using DYNA3D simulations.https://doi.org/10.1051/epjconf/201818301058
spellingShingle Church Philip
Reynolds Mark
Gould Peter
Oakley Robin
Harrison Nigel
Williamson Dave
Braithwaite Chris
Taylor Nick
Tensile Properties of AM Maraging steel
EPJ Web of Conferences
title Tensile Properties of AM Maraging steel
title_full Tensile Properties of AM Maraging steel
title_fullStr Tensile Properties of AM Maraging steel
title_full_unstemmed Tensile Properties of AM Maraging steel
title_short Tensile Properties of AM Maraging steel
title_sort tensile properties of am maraging steel
url https://doi.org/10.1051/epjconf/201818301058
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AT williamsondave tensilepropertiesofammaragingsteel
AT braithwaitechris tensilepropertiesofammaragingsteel
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