No Cover Image

Journal article 1215 views 903 downloads

Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy

Quanquan Han, Yuchen Gu, Rossitza Setchi, Franck Lacan, Richard Johnston Orcid Logo, Sam L. Evans, Shoufeng Yang

Additive Manufacturing, Volume: 30, Start page: 100919

Swansea University Author: Richard Johnston Orcid Logo

  • han2019.pdf

    PDF | Accepted Manuscript

    © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license

    Download (5.02MB)

Abstract

Laser powder bed fusion (LPBF) is a proven additive manufacturing (AM) technology for producing metallic components with complex shapes using layer-by-layer manufacture principle. However, the fabrication of crack-free high-performance Ni-based superalloys such as Hastelloy X (HX) using LPBF technol...

Full description

Published in: Additive Manufacturing
ISSN: 2214-8604
Published: Elsevier BV 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa52481
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2019-10-17T14:22:41Z
last_indexed 2019-10-17T14:22:41Z
id cronfa52481
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2019-10-17T10:43:11.7101547</datestamp><bib-version>v2</bib-version><id>52481</id><entry>2019-10-17</entry><title>Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy</title><swanseaauthors><author><sid>23282e7acce87dd926b8a62ae410a393</sid><ORCID>0000-0003-1977-6418</ORCID><firstname>Richard</firstname><surname>Johnston</surname><name>Richard Johnston</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2019-10-17</date><deptcode>MTLS</deptcode><abstract>Laser powder bed fusion (LPBF) is a proven additive manufacturing (AM) technology for producing metallic components with complex shapes using layer-by-layer manufacture principle. However, the fabrication of crack-free high-performance Ni-based superalloys such as Hastelloy X (HX) using LPBF technology remains a challenge because of these materials&#x2019; susceptibility to hot cracking. This paper addresses the above problem by proposing a novel method of introducing 1&#x2009;wt.% titanium carbide (TiC) nanoparticles. The findings reveal that the addition of TiC nanoparticles results in the elimination of microcracks in the LPBF-fabricated enhanced HX samples; i.e. the 0.65% microcracks that were formed in the as-fabricated original HX were eliminated in the as-fabricated enhanced HX, despite the 0.14% residual pores formed. It also contributes to a 21.8% increase in low-angle grain boundaries (LAGBs) and a 98&#x2009;MPa increase in yield strength. The study revealed that segregated carbides were unable to trigger hot cracking without sufficient thermal residual stresses; the significantly increased subgrains and low-angle grain boundaries played a key role in the hot cracking elimination. These findings offer a new perspective on the elimination of hot cracking of nickel-based superalloys and other industrially relevant crack-susceptible alloys. The findings also have significant implications for the design of new alloys, particularly for high-temperature industrial applications.</abstract><type>Journal Article</type><journal>Additive Manufacturing</journal><volume>30</volume><paginationStart>100919</paginationStart><publisher>Elsevier BV</publisher><issnPrint>2214-8604</issnPrint><keywords>Powder bed fusion, nickel-based superalloy, Hastelloy X, cracking, nanoparticle</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2019</publishedYear><publishedDate>2019-12-31</publishedDate><doi>10.1016/j.addma.2019.100919</doi><url/><notes/><college>COLLEGE NANME</college><department>Materials Science and Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MTLS</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2019-10-17T10:43:11.7101547</lastEdited><Created>2019-10-17T10:32:02.9584742</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Materials Science and Engineering</level></path><authors><author><firstname>Quanquan</firstname><surname>Han</surname><order>1</order></author><author><firstname>Yuchen</firstname><surname>Gu</surname><order>2</order></author><author><firstname>Rossitza</firstname><surname>Setchi</surname><order>3</order></author><author><firstname>Franck</firstname><surname>Lacan</surname><order>4</order></author><author><firstname>Richard</firstname><surname>Johnston</surname><orcid>0000-0003-1977-6418</orcid><order>5</order></author><author><firstname>Sam L.</firstname><surname>Evans</surname><order>6</order></author><author><firstname>Shoufeng</firstname><surname>Yang</surname><order>7</order></author></authors><documents><document><filename>0052481-17102019104224.pdf</filename><originalFilename>han2019.pdf</originalFilename><uploaded>2019-10-17T10:42:24.2000000</uploaded><type>Output</type><contentLength>5259893</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><embargoDate>2020-10-15T00:00:00.0000000</embargoDate><documentNotes>&#xA9; 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by-nc-nd/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2019-10-17T10:43:11.7101547 v2 52481 2019-10-17 Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy 23282e7acce87dd926b8a62ae410a393 0000-0003-1977-6418 Richard Johnston Richard Johnston true false 2019-10-17 MTLS Laser powder bed fusion (LPBF) is a proven additive manufacturing (AM) technology for producing metallic components with complex shapes using layer-by-layer manufacture principle. However, the fabrication of crack-free high-performance Ni-based superalloys such as Hastelloy X (HX) using LPBF technology remains a challenge because of these materials’ susceptibility to hot cracking. This paper addresses the above problem by proposing a novel method of introducing 1 wt.% titanium carbide (TiC) nanoparticles. The findings reveal that the addition of TiC nanoparticles results in the elimination of microcracks in the LPBF-fabricated enhanced HX samples; i.e. the 0.65% microcracks that were formed in the as-fabricated original HX were eliminated in the as-fabricated enhanced HX, despite the 0.14% residual pores formed. It also contributes to a 21.8% increase in low-angle grain boundaries (LAGBs) and a 98 MPa increase in yield strength. The study revealed that segregated carbides were unable to trigger hot cracking without sufficient thermal residual stresses; the significantly increased subgrains and low-angle grain boundaries played a key role in the hot cracking elimination. These findings offer a new perspective on the elimination of hot cracking of nickel-based superalloys and other industrially relevant crack-susceptible alloys. The findings also have significant implications for the design of new alloys, particularly for high-temperature industrial applications. Journal Article Additive Manufacturing 30 100919 Elsevier BV 2214-8604 Powder bed fusion, nickel-based superalloy, Hastelloy X, cracking, nanoparticle 31 12 2019 2019-12-31 10.1016/j.addma.2019.100919 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2019-10-17T10:43:11.7101547 2019-10-17T10:32:02.9584742 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Quanquan Han 1 Yuchen Gu 2 Rossitza Setchi 3 Franck Lacan 4 Richard Johnston 0000-0003-1977-6418 5 Sam L. Evans 6 Shoufeng Yang 7 0052481-17102019104224.pdf han2019.pdf 2019-10-17T10:42:24.2000000 Output 5259893 application/pdf Accepted Manuscript true 2020-10-15T00:00:00.0000000 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
spellingShingle Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
Richard Johnston
title_short Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
title_full Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
title_fullStr Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
title_full_unstemmed Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
title_sort Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloy
author_id_str_mv 23282e7acce87dd926b8a62ae410a393
author_id_fullname_str_mv 23282e7acce87dd926b8a62ae410a393_***_Richard Johnston
author Richard Johnston
author2 Quanquan Han
Yuchen Gu
Rossitza Setchi
Franck Lacan
Richard Johnston
Sam L. Evans
Shoufeng Yang
format Journal article
container_title Additive Manufacturing
container_volume 30
container_start_page 100919
publishDate 2019
institution Swansea University
issn 2214-8604
doi_str_mv 10.1016/j.addma.2019.100919
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description Laser powder bed fusion (LPBF) is a proven additive manufacturing (AM) technology for producing metallic components with complex shapes using layer-by-layer manufacture principle. However, the fabrication of crack-free high-performance Ni-based superalloys such as Hastelloy X (HX) using LPBF technology remains a challenge because of these materials’ susceptibility to hot cracking. This paper addresses the above problem by proposing a novel method of introducing 1 wt.% titanium carbide (TiC) nanoparticles. The findings reveal that the addition of TiC nanoparticles results in the elimination of microcracks in the LPBF-fabricated enhanced HX samples; i.e. the 0.65% microcracks that were formed in the as-fabricated original HX were eliminated in the as-fabricated enhanced HX, despite the 0.14% residual pores formed. It also contributes to a 21.8% increase in low-angle grain boundaries (LAGBs) and a 98 MPa increase in yield strength. The study revealed that segregated carbides were unable to trigger hot cracking without sufficient thermal residual stresses; the significantly increased subgrains and low-angle grain boundaries played a key role in the hot cracking elimination. These findings offer a new perspective on the elimination of hot cracking of nickel-based superalloys and other industrially relevant crack-susceptible alloys. The findings also have significant implications for the design of new alloys, particularly for high-temperature industrial applications.
published_date 2019-12-31T04:04:52Z
_version_ 1763753373476061184
score 11.030296