Microstructural adjustment of hot-rolled Ti–6Al–4V based on a CCT diagram
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In: Materials science and technology, Vol. 38.2022, No. 13, 2022, p. 957-964.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Microstructural adjustment of hot-rolled Ti–6Al–4V based on a CCT diagram
AU - Janda, Alexander
AU - Ebenbauer, Stefan
AU - Prestl, Aude
AU - Siller, Ingo
AU - Clemens, Helmut
N1 - Publisher Copyright: © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85132669090&partnerID=8YFLogxK
U2 - 10.1080/02670836.2022.2068243
DO - 10.1080/02670836.2022.2068243
M3 - Article
VL - 38.2022
SP - 957
EP - 964
JO - Materials science and technology
JF - Materials science and technology
SN - 0267-0836
IS - 13
ER -
