Oxide layer and diffusion zone formation during oxidation of Ti6Al4V and TiZrNbHfTa and their influence on tribological properties

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007407
URN to cite this document: urn:nbn:de:bvb:703-epub-7407-8

Title data

Dickes, Daniel:
Oxide layer and diffusion zone formation during oxidation of Ti6Al4V and TiZrNbHfTa and their influence on tribological properties.
Bayreuth : EPub Bayreuth , 2024 . - IV, 112 P. - (Berichte aus der Materialwissenschaft )
( Doctoral thesis, 2023 , University of Bayreuth, Faculty of Engineering Science)

	Format: PDF Name: Dissertation_3-8440-9293-5_Shaker.pdf Version: Published Version Available under License German copyright law. The document may be used free of charge for personal use. In addition, the reproduction, editing, distribution and any kind of exploitation require the written consent of the respective rights holder.
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Project information

Project title:	Project's official title Project's id „Oxygen Diffusion Hardening“ (ODH) von Elementen der Titangruppe und deren tribologische Eigenschaften 270293189
Project financing:	Deutsche Forschungsgemeinschaft

Abstract

In dieser Arbeit werden vier verschiedene Oxidationsprozesse zur Oberflächenmodifikation von Ti6Al4V und der äquimolaren Hochentropielegierung TiZrNbHfTa untersucht. Ziel ist es, harte, haftende Oxidschichten auf einer ausgeprägten Sauerstoffdiffusionszone mit graduellem Härteverlauf zu generieren. Dies soll sich positiv auf das tribologische Verhalten auswirken und Verschleiß minimieren. Zu den untersuchten Prozessen zählen: ein einstufiger Prozess bestehend aus Oxidation an Luft, ein zweistufiger Prozess bei dem auf die Oxidation an Luft eine Oxidreduktion unter Vakuum folgt, ein dreistufiger Prozess bei dem auf die Oxidreduktion eine erneute Oxidation an Luft erfolgt und eine Oxidation bei reduziertem Sauerstoffpartialdruck.

Abstract in another language

This work investigates four different oxidation processes to modify the surface of Ti6Al4V and the equimolar high entropy alloy TiZrNbHfTa. The aim is to generate hard, adherent oxide layers with an underlying pronounced oxygen diffusion zone exhibiting a gradual hardness decrease. This can positively affect the tribological behavior of both alloy systems and, in particular, improve their wear resistance. The studied oxidation processes are: a single-step process consisting of oxidation in air, a two-step process in which oxidation in air is followed by an oxide reduction under vacuum, a three-step process in which the oxide reduction is followed by another oxidation step, and an oxidation process at reduced oxygen partial pressure.

Further data

Item Type:	Doctoral thesis (No information)
Additional notes (visible to public):	erscheint: Düren: Shaker Verl. 2023; ISBN 978-3-8440-9293-6
Keywords:	titanium alloys; Ti6Al4V; high entropy alloys; TiZrNbHfTa; oxidation; tribology; surface hardening
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University:	Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Metals and Alloys > Chair Metals and Alloys - Univ.-Prof. Dr.-Ing. Uwe Glatzel Faculties Faculties > Faculty of Engineering Science > Chair Metals and Alloys
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-7407-8
Date Deposited:	16 Jan 2024 09:43
Last Modified:	16 Jan 2024 09:43
URI:	https://epub.uni-bayreuth.de/id/eprint/7407

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