Microstructural and Texture Evolution During Thermo-Hydrogen Processing of Ti6al4v Alloys Produced by Electron Beam Melting

dc.authorid Dericioglu, Arcan/0000-0003-3797-117X
dc.authorid Davut, Kemal/0000-0002-9860-881X
dc.authorscopusid 57218531054
dc.authorscopusid 15725067800
dc.authorscopusid 36084019200
dc.authorscopusid 16029778200
dc.authorscopusid 56548518200
dc.authorscopusid 6602975604
dc.authorwosid DAVUT, Kemal/ABB-7505-2021
dc.authorwosid Dericioglu, Arcan/A-1891-2016
dc.contributor.author Dogu, Merve Nur
dc.contributor.author Esen, Ziya
dc.contributor.author Davut, Kemal
dc.contributor.author Tan, Evren
dc.contributor.author Gumus, Berkay
dc.contributor.author Dericioglu, Arcan F.
dc.contributor.other Department of Metallurgical and Materials Engineering
dc.date.accessioned 2024-07-05T15:39:40Z
dc.date.available 2024-07-05T15:39:40Z
dc.date.issued 2020
dc.department Atılım University en_US
dc.department-temp [Dogu, Merve Nur; Dericioglu, Arcan F.] Middle East Tech Univ, Met & Mat Engn Dept, Ankara, Turkey; [Esen, Ziya] Cankaya Univ, Mat Sci & Engn Dept, Ankara, Turkey; [Dogu, Merve Nur; Davut, Kemal] Atilim Univ, Met & Mat Engn Dept, Ankara, Turkey; [Davut, Kemal] Atilim Univ, Met Forming Ctr Excellence, Ankara, Turkey; [Tan, Evren; Gumus, Berkay] ASELSAN Inc, Def Syst Technol Business Sect, Ankara, Turkey en_US
dc.description Dericioglu, Arcan/0000-0003-3797-117X; Davut, Kemal/0000-0002-9860-881X en_US
dc.description.abstract The present study was conducted to reveal the effects of building angles and post heat-treatments (2-step Thermo-Hydrogen Processing (THP) and conventional annealing treatment) on the density, microstructure and texture of Ti6Al4V alloy parts produced by Electron Beam Melting (EBM). The results showed that regardless of the building angle; the density, microstructure and crystallographic texture (defined with respect to building angle) of the as-produced samples were identical; having Widmanstatten a structure and columnar beta-grains which are parallel to building direction. The main texture component for the alpha phase was (10 (1) over bar0)//building direction, and for beta phase (001)//building or heat flow direction. The first step of THP, namely, the hydrogenation step, produced a needle-like microstructure and increased the local misorientations due to lattice distortion. On the other hand, after application of the second step of THP, dehydrogenation step, microstructure was refined, particularly alpha-grains that were larger than 10 mu m and located at grain boundaries. Moreover, THP randomized the crystallographic texture since it involves beta to alpha phase transformation, at which one beta-grain can produce 12 distinct alpha-variants. The grain boundary misorientation distributions also changed in accordance with the microstructural changes during the 2-step THP. On the other hand, annealing coarsened the grain boundary and Widmanstatten alpha phases; moreover, it changed the texture so that the basal planes (0001) rotated 30 degrees around the building direction. en_US
dc.description.sponsorship Scientific Research Project of Middle East Technical University [GAP-308-2018-2694]; Metal Forming Center of Excellence of Atilim University en_US
dc.description.sponsorship This work was supported by the Scientific Research Project of Middle East Technical University (Project number: GAP-308-2018-2694). The authors also thank Mr. Yahya Tunc from Metal Forming Center of Excellence of Atilim University for his help with the surface roughness measurements. en_US
dc.identifier.citationcount 19
dc.identifier.doi 10.1016/j.matchar.2020.110549
dc.identifier.issn 1044-5803
dc.identifier.issn 1873-4189
dc.identifier.scopus 2-s2.0-85089438902
dc.identifier.scopusquality Q1
dc.identifier.uri https://doi.org/10.1016/j.matchar.2020.110549
dc.identifier.uri https://hdl.handle.net/20.500.14411/3247
dc.identifier.volume 168 en_US
dc.identifier.wos WOS:000571812800007
dc.identifier.wosquality Q1
dc.institutionauthor Doğu, Merve Nur
dc.institutionauthor Davut, Kemal
dc.language.iso en en_US
dc.publisher Elsevier Science inc en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.scopus.citedbyCount 24
dc.subject Titanium alloys en_US
dc.subject Additive manufacturing en_US
dc.subject Electron beam melting en_US
dc.subject Thermo-hydrogen processing en_US
dc.subject Microstructure en_US
dc.subject Crystallographic texture en_US
dc.title Microstructural and Texture Evolution During Thermo-Hydrogen Processing of Ti6al4v Alloys Produced by Electron Beam Melting en_US
dc.type Article en_US
dc.wos.citedbyCount 23
dspace.entity.type Publication
relation.isAuthorOfPublication dbea9c08-507a-465d-b4ed-90924c33a3f1
relation.isAuthorOfPublication 7ea60c4e-72cb-456c-858c-a04c863f4e14
relation.isAuthorOfPublication.latestForDiscovery dbea9c08-507a-465d-b4ed-90924c33a3f1
relation.isOrgUnitOfPublication d165e0bb-11c8-41da-8394-7770a9f0183b
relation.isOrgUnitOfPublication.latestForDiscovery d165e0bb-11c8-41da-8394-7770a9f0183b

Files

Collections