Microstructure formation during thermomechanical processing in Ti-17 alloy

The microstructure evolution during solution treatment at (alpha+beta) two phase region and subsequent aging process at 620 ˚C, after compressing the specimen in beta structure to different strain (0-70%) followed by cooling to room temperature has been investigated. Deformation strain hardly affect...

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Main Authors: Chandiran Elango, Miyamoto Goro, Furuhara Tadashi
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12006.pdf
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author Chandiran Elango
Miyamoto Goro
Furuhara Tadashi
author_facet Chandiran Elango
Miyamoto Goro
Furuhara Tadashi
author_sort Chandiran Elango
collection DOAJ
description The microstructure evolution during solution treatment at (alpha+beta) two phase region and subsequent aging process at 620 ˚C, after compressing the specimen in beta structure to different strain (0-70%) followed by cooling to room temperature has been investigated. Deformation strain hardly affects the total volume fraction of alpha phase after the solution treatment and aging process. On the other hand, with an increase in deformation strain, the volume fraction of the primary alpha phase increased although secondary alpha phase decreased, during the aging process, scuhdecrease in secondary alpha phase volume fraction results in a decrease in the strength. The loss of coherency of alpha/beta interphase boundaries at higher deformation strain promoted by dynamic recovery increases the interfacial mobility; which results in faster growth of primary alpha, thereby decreases secondary alpha precipitation.
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spelling doaj.art-aad7cef3c6db4dc18f0fc8c6cb15dbbc2022-12-21T22:51:18ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013211200610.1051/matecconf/202032112006matecconf_ti2019_12006Microstructure formation during thermomechanical processing in Ti-17 alloyChandiran Elango0Miyamoto Goro1Furuhara Tadashi2Institute for Materials Research, Tohoku UniversityInstitute for Materials Research, Tohoku UniversityInstitute for Materials Research, Tohoku UniversityThe microstructure evolution during solution treatment at (alpha+beta) two phase region and subsequent aging process at 620 ˚C, after compressing the specimen in beta structure to different strain (0-70%) followed by cooling to room temperature has been investigated. Deformation strain hardly affects the total volume fraction of alpha phase after the solution treatment and aging process. On the other hand, with an increase in deformation strain, the volume fraction of the primary alpha phase increased although secondary alpha phase decreased, during the aging process, scuhdecrease in secondary alpha phase volume fraction results in a decrease in the strength. The loss of coherency of alpha/beta interphase boundaries at higher deformation strain promoted by dynamic recovery increases the interfacial mobility; which results in faster growth of primary alpha, thereby decreases secondary alpha precipitation.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12006.pdf
spellingShingle Chandiran Elango
Miyamoto Goro
Furuhara Tadashi
Microstructure formation during thermomechanical processing in Ti-17 alloy
MATEC Web of Conferences
title Microstructure formation during thermomechanical processing in Ti-17 alloy
title_full Microstructure formation during thermomechanical processing in Ti-17 alloy
title_fullStr Microstructure formation during thermomechanical processing in Ti-17 alloy
title_full_unstemmed Microstructure formation during thermomechanical processing in Ti-17 alloy
title_short Microstructure formation during thermomechanical processing in Ti-17 alloy
title_sort microstructure formation during thermomechanical processing in ti 17 alloy
url https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12006.pdf
work_keys_str_mv AT chandiranelango microstructureformationduringthermomechanicalprocessinginti17alloy
AT miyamotogoro microstructureformationduringthermomechanicalprocessinginti17alloy
AT furuharatadashi microstructureformationduringthermomechanicalprocessinginti17alloy