Oxidation difference of microstructural bands in additive manufactured titanium alloy

Autor:	L. Q. Fu, Z. W. Yang, Y. Wang, Z. Q. Ma, Z. J. Wang, D. P. Wang
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	additive manufacturing titanium alloys oxidation heat-affected bands Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 10, Iss 1, Pp 6-13 (2022)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2021.2000515
Popis:	In this study, Ti6Al7Nb alloy produced by twin-wire arc additive manufacturing was oxidized at 800°C to identify the oxidation difference induced by heat-affected bands (HABs), which have been widely reported in additive manufactured titanium alloys. The oxidation kinetics proved that HABs with compact β laths have stronger oxidation resistance compared with that of the non-HAB zone. Nb element enriched in β phase promoted Ti3Al to precipitate at the original position of β laths after oxidation, having a similar spacing to the β laths. The formation of compact Ti3Al on HAB beneficially inhibits oxygen diffusion across the oxide scale/matrix interface.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/195fb127fcbf4fb6a2b1ae9b401f046e Zobrazit plný text záznamu View record in DOAJ