Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing

The microstructure, mechanical properties, and deformation behavior of wrought and electron beam additive manufactured (EBAM) Ti-6Al-4V samples under scratching were studied. As-received wrought Ti-6Al-4V was subjected to thermal treatment to obtain the samples with microstructure and mechanical cha...

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Autores principales:	Artur Shugurov, Alexey Panin, Marina Kazachenok, Lyudmila Kazantseva, Sergey Martynov, Alexander Bakulin, Svetlana Kulkova
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	wire-feed electron beam additive manufacturing Ti-6Al-4V microstructure scratch testing phase transformations Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/725aa19b4cd640e5a814851eb09593b0
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spelling	oai:doaj.org-article:725aa19b4cd640e5a814851eb09593b02021-11-25T18:22:38ZDeformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing10.3390/met111118822075-4701https://doaj.org/article/725aa19b4cd640e5a814851eb09593b02021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1882https://doaj.org/toc/2075-4701The microstructure, mechanical properties, and deformation behavior of wrought and electron beam additive manufactured (EBAM) Ti-6Al-4V samples under scratching were studied. As-received wrought Ti-6Al-4V was subjected to thermal treatment to obtain the samples with microstructure and mechanical characteristics similar to those of the EBAM samples. As a result, both alloys consisted of colonies of α phase laths within prior β phase grains and were characterized by close values of hardness. At the same time, the Young’s modulus of the EBAM samples determined by nanoindentation was lower compared with the wrought samples. It was found that despite the same hardness, the scratch depth of the EBAM samples under loading was substantially smaller than that of the wrought alloy. A mechanism was proposed, which associated the smaller scratch depth of EBAM Ti-6Al-4V with α′→α″ phase transformations that occurred in the contact area during scratching. Ab initio calculations of the atomic structure of V-doped Ti crystallites containing α or α″ phases of titanium were carried out to support the proposed mechanism.Artur ShugurovAlexey PaninMarina KazachenokLyudmila KazantsevaSergey MartynovAlexander BakulinSvetlana KulkovaMDPI AGarticlewire-feed electron beam additive manufacturingTi-6Al-4Vmicrostructurescratch testingphase transformationsMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1882, p 1882 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wire-feed electron beam additive manufacturing Ti-6Al-4V microstructure scratch testing phase transformations Mining engineering. Metallurgy TN1-997
spellingShingle	wire-feed electron beam additive manufacturing Ti-6Al-4V microstructure scratch testing phase transformations Mining engineering. Metallurgy TN1-997 Artur Shugurov Alexey Panin Marina Kazachenok Lyudmila Kazantseva Sergey Martynov Alexander Bakulin Svetlana Kulkova Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing
description	The microstructure, mechanical properties, and deformation behavior of wrought and electron beam additive manufactured (EBAM) Ti-6Al-4V samples under scratching were studied. As-received wrought Ti-6Al-4V was subjected to thermal treatment to obtain the samples with microstructure and mechanical characteristics similar to those of the EBAM samples. As a result, both alloys consisted of colonies of α phase laths within prior β phase grains and were characterized by close values of hardness. At the same time, the Young’s modulus of the EBAM samples determined by nanoindentation was lower compared with the wrought samples. It was found that despite the same hardness, the scratch depth of the EBAM samples under loading was substantially smaller than that of the wrought alloy. A mechanism was proposed, which associated the smaller scratch depth of EBAM Ti-6Al-4V with α′→α″ phase transformations that occurred in the contact area during scratching. Ab initio calculations of the atomic structure of V-doped Ti crystallites containing α or α″ phases of titanium were carried out to support the proposed mechanism.
format	article
author	Artur Shugurov Alexey Panin Marina Kazachenok Lyudmila Kazantseva Sergey Martynov Alexander Bakulin Svetlana Kulkova
author_facet	Artur Shugurov Alexey Panin Marina Kazachenok Lyudmila Kazantseva Sergey Martynov Alexander Bakulin Svetlana Kulkova
author_sort	Artur Shugurov
title	Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing
title_short	Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing
title_full	Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing
title_fullStr	Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing
title_full_unstemmed	Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing
title_sort	deformation behavior of wrought and ebam ti-6al-4v under scratch testing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/725aa19b4cd640e5a814851eb09593b0
work_keys_str_mv	AT arturshugurov deformationbehaviorofwroughtandebamti6al4vunderscratchtesting AT alexeypanin deformationbehaviorofwroughtandebamti6al4vunderscratchtesting AT marinakazachenok deformationbehaviorofwroughtandebamti6al4vunderscratchtesting AT lyudmilakazantseva deformationbehaviorofwroughtandebamti6al4vunderscratchtesting AT sergeymartynov deformationbehaviorofwroughtandebamti6al4vunderscratchtesting AT alexanderbakulin deformationbehaviorofwroughtandebamti6al4vunderscratchtesting AT svetlanakulkova deformationbehaviorofwroughtandebamti6al4vunderscratchtesting
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Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing

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