Microstructural adjustment of hot-rolled Ti–6Al–4V based on a CCT diagram

Alexander Janda, Stefan Ebenbauer, Aude Prestl, Ingo Siller, Helmut Clemens

Research output: Contribution to journalArticleResearchpeer-review


The effects of post-processing heat treatments on hot-rolled Ti–6Al–4V with extra low interstitial concentration were investigated. The 2 mm sheets were rolled in the single β phase field region and subsequently cooled in air. A continuous cooling transformation (CCT) diagram was generated, revealing the strong influence of the cooling rate on both microstructure and hardness. Cooling rates between 0.01 and 200°C s−1 were selected. While rapid cooling resulted in a martensitic transformation β → α′, a decrease in the cooling rate led to a progressive spheroidization of the lamellar (α + β) microstructure. With a focus on the established CCT continuous cooling transformation diagram, this study contains insight on the microstructure evolution of the Ti–6Al–4V ELI alloy during cooling from the single β phase field region.
Original languageEnglish
Pages (from-to)957-964
Number of pages8
JournalMaterials science and technology
Issue number13
Early online date2 May 2022
Publication statusPublished - 2022

Bibliographical note

Publisher Copyright: © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Cite this