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

Y Chang, AJ Breen, Z Tarzimoghadam, P Kürnsteiner… - Acta Materialia, 2018 - Elsevier
Y Chang, AJ Breen, Z Tarzimoghadam, P Kürnsteiner, H Gardner, A Ackerman, A Radecka…
Acta Materialia, 2018Elsevier
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+ …
Abstract
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.
Elsevier
以上显示的是最相近的搜索结果。 查看全部搜索结果