Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale

Ti and its alloys have a high affinity for hydrogen and are typical hydride formers. Ti-hydride are brittle phases which probably cause premature failure of Ti-alloys. Here, we used atom probe tomography and electron microscopy to investigate the hydrogen distribution in a set of specimens of commer...

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Main Authors: Chang, Y, Breen, AJ, Tarzimoghadam, Z, Kürnsteiner, P, Gardner, H, Ackerman, A, Radecka, A, Bagot, PAJ, Lu, W, Li, T, Jägle, EA, Herbig, M, Stephenson, LT, Moody, MP, Rugg, D, Dye, D, Ponge, D, Raabe, D, Gault, B
Format: Journal article
Language:English
Published: Elsevier 2018
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author Chang, Y
Breen, AJ
Tarzimoghadam, Z
Kürnsteiner, P
Gardner, H
Ackerman, A
Radecka, A
Bagot, PAJ
Lu, W
Li, T
Jägle, EA
Herbig, M
Stephenson, LT
Moody, MP
Rugg, D
Dye, D
Ponge, D
Raabe, D
Gault, B
author_facet Chang, Y
Breen, AJ
Tarzimoghadam, Z
Kürnsteiner, P
Gardner, H
Ackerman, A
Radecka, A
Bagot, PAJ
Lu, W
Li, T
Jägle, EA
Herbig, M
Stephenson, LT
Moody, MP
Rugg, D
Dye, D
Ponge, D
Raabe, D
Gault, B
author_sort Chang, Y
collection OXFORD
description Ti and its alloys have a high affinity for hydrogen and are typical hydride formers. Ti-hydride are brittle phases which probably cause premature failure of Ti-alloys. Here, we used atom probe tomography and electron microscopy to investigate the hydrogen distribution in a set of specimens of commercially pure Ti, model and commercial Ti-alloys. Although likely partly introduced during specimen preparation with the focused-ion beam, we show formation of Ti-hydrides along α grain boundaries and α/β phase boundaries in commercial pure Ti and α+β binary model alloys. No hydrides are observed in the α phase in alloys with Al addition or quenched-in Mo supersaturation.
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spelling oxford-uuid:92e98546-6cb4-46db-ae03-49e04aeedc5e2022-03-26T23:28:50ZCharacterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scaleJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:92e98546-6cb4-46db-ae03-49e04aeedc5eEnglishSymplectic Elements at OxfordElsevier2018Chang, YBreen, AJTarzimoghadam, ZKürnsteiner, PGardner, HAckerman, ARadecka, ABagot, PAJLu, WLi, TJägle, EAHerbig, MStephenson, LTMoody, MPRugg, DDye, DPonge, DRaabe, DGault, BTi and its alloys have a high affinity for hydrogen and are typical hydride formers. Ti-hydride are brittle phases which probably cause premature failure of Ti-alloys. Here, we used atom probe tomography and electron microscopy to investigate the hydrogen distribution in a set of specimens of commercially pure Ti, model and commercial Ti-alloys. Although likely partly introduced during specimen preparation with the focused-ion beam, we show formation of Ti-hydrides along α grain boundaries and α/β phase boundaries in commercial pure Ti and α+β binary model alloys. No hydrides are observed in the α phase in alloys with Al addition or quenched-in Mo supersaturation.
spellingShingle Chang, Y
Breen, AJ
Tarzimoghadam, Z
Kürnsteiner, P
Gardner, H
Ackerman, A
Radecka, A
Bagot, PAJ
Lu, W
Li, T
Jägle, EA
Herbig, M
Stephenson, LT
Moody, MP
Rugg, D
Dye, D
Ponge, D
Raabe, D
Gault, B
Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
title Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
title_full Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
title_fullStr Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
title_full_unstemmed Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
title_short Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
title_sort characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
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