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Structural Integrity of an Electron Beam Melted Titanium Alloy / Robert Lancaster, Gareth Davies, Henry Illsley, Spencer Jeffs, Gavin Baxter

Materials, Volume: 9, Issue: 6

Swansea University Authors: Robert Lancaster, Henry Illsley, Spencer Jeffs

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DOI (Published version): 10.3390/ma9060470

Abstract

Advanced manufacturing encompasses the wide range of processes that consist of “3D printing” of metallic materials. One such method is Electron Beam Melting (EBM), a modern build technology that offers significant potential for lean manufacture and a capability to produce fully dense near-net shaped...

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Published in: Materials
ISSN: 1996-1944 1996-1944
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa28879
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spelling 2021-01-14T13:24:16.9586362 v2 28879 2016-06-14 Structural Integrity of an Electron Beam Melted Titanium Alloy e1a1b126acd3e4ff734691ec34967f29 0000-0002-1365-6944 Robert Lancaster Robert Lancaster true false c6c06ae7759a8ec545aef99c275c3bf5 Henry Illsley Henry Illsley true false 6ff76d567df079d8bf299990849c3d8f 0000-0002-2819-9651 Spencer Jeffs Spencer Jeffs true false 2016-06-14 MTLS Advanced manufacturing encompasses the wide range of processes that consist of “3D printing” of metallic materials. One such method is Electron Beam Melting (EBM), a modern build technology that offers significant potential for lean manufacture and a capability to produce fully dense near-net shaped components. However, the manufacture of intricate geometries will result in variable thermal cycles and thus a transient microstructure throughout, leading to a highly textured structure. As such, successful implementation of these technologies requires a comprehensive assessment of the relationships of the key process variables, geometries, resultant microstructures and mechanical properties. The nature of this process suggests that it is often difficult to produce representative test specimens necessary to achieve a full mechanical property characterisation. Therefore, the use of small scale test techniques may be exploited, specifically the small punch (SP) test. The SP test offers a capability for sampling miniaturised test specimens from various discrete locations in a thin-walled component, allowing a full characterisation across a complex geometry. This paper provides support in working towards development and validation strategies in order for advanced manufactured components to be safely implemented into future gas turbine applications. This has been achieved by applying the SP test to a series of Ti-6Al-4V variants that have been manufactured through a variety of processing routes including EBM and investigating the structural integrity of each material and how this controls the mechanical response. Journal Article Materials 9 6 1996-1944 1996-1944 electron beam melting; titanium alloys; small punch test; X-ray computed tomography; failure analysis 14 6 2016 2016-06-14 10.3390/ma9060470 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University RCUK, EP/H500383/1 2021-01-14T13:24:16.9586362 2016-06-14T14:43:43.6721331 College of Engineering Engineering Robert Lancaster 0000-0002-1365-6944 1 Gareth Davies 2 Henry Illsley 3 Spencer Jeffs 0000-0002-2819-9651 4 Gavin Baxter 5 0028879-14062016191042.pdf materialsTiEBM.pdf 2016-06-14T19:10:42.7500000 Output 9813212 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Structural Integrity of an Electron Beam Melted Titanium Alloy
spellingShingle Structural Integrity of an Electron Beam Melted Titanium Alloy
Robert, Lancaster
Henry, Illsley
Spencer, Jeffs
title_short Structural Integrity of an Electron Beam Melted Titanium Alloy
title_full Structural Integrity of an Electron Beam Melted Titanium Alloy
title_fullStr Structural Integrity of an Electron Beam Melted Titanium Alloy
title_full_unstemmed Structural Integrity of an Electron Beam Melted Titanium Alloy
title_sort Structural Integrity of an Electron Beam Melted Titanium Alloy
author_id_str_mv e1a1b126acd3e4ff734691ec34967f29
c6c06ae7759a8ec545aef99c275c3bf5
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author_id_fullname_str_mv e1a1b126acd3e4ff734691ec34967f29_***_Robert, Lancaster
c6c06ae7759a8ec545aef99c275c3bf5_***_Henry, Illsley
6ff76d567df079d8bf299990849c3d8f_***_Spencer, Jeffs
author Robert, Lancaster
Henry, Illsley
Spencer, Jeffs
author2 Robert Lancaster
Gareth Davies
Henry Illsley
Spencer Jeffs
Gavin Baxter
format Journal article
container_title Materials
container_volume 9
container_issue 6
publishDate 2016
institution Swansea University
issn 1996-1944
1996-1944
doi_str_mv 10.3390/ma9060470
college_str College of Engineering
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hierarchy_parent_title College of Engineering
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description Advanced manufacturing encompasses the wide range of processes that consist of “3D printing” of metallic materials. One such method is Electron Beam Melting (EBM), a modern build technology that offers significant potential for lean manufacture and a capability to produce fully dense near-net shaped components. However, the manufacture of intricate geometries will result in variable thermal cycles and thus a transient microstructure throughout, leading to a highly textured structure. As such, successful implementation of these technologies requires a comprehensive assessment of the relationships of the key process variables, geometries, resultant microstructures and mechanical properties. The nature of this process suggests that it is often difficult to produce representative test specimens necessary to achieve a full mechanical property characterisation. Therefore, the use of small scale test techniques may be exploited, specifically the small punch (SP) test. The SP test offers a capability for sampling miniaturised test specimens from various discrete locations in a thin-walled component, allowing a full characterisation across a complex geometry. This paper provides support in working towards development and validation strategies in order for advanced manufactured components to be safely implemented into future gas turbine applications. This has been achieved by applying the SP test to a series of Ti-6Al-4V variants that have been manufactured through a variety of processing routes including EBM and investigating the structural integrity of each material and how this controls the mechanical response.
published_date 2016-06-14T03:46:16Z
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