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The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet

The influences of process annealing temperature during cold rolling on microstructure and mechanical properties of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe near β high strength titanium alloy sheets have been investigated. Results showed that the alloy mainly included the deformation induced dislocation struct...

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Autores principales: Du, Zhaoxin, Ma, Yan, Liu, Fei, Xu, Ning, Chen, Yanfei, Wang, Xiaopeng, Chen, Yuyong, Gong, Tianhao, Xu, Dong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539382/
https://www.ncbi.nlm.nih.gov/pubmed/31067798
http://dx.doi.org/10.3390/ma12091478
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author Du, Zhaoxin
Ma, Yan
Liu, Fei
Xu, Ning
Chen, Yanfei
Wang, Xiaopeng
Chen, Yuyong
Gong, Tianhao
Xu, Dong
author_facet Du, Zhaoxin
Ma, Yan
Liu, Fei
Xu, Ning
Chen, Yanfei
Wang, Xiaopeng
Chen, Yuyong
Gong, Tianhao
Xu, Dong
author_sort Du, Zhaoxin
collection PubMed
description The influences of process annealing temperature during cold rolling on microstructure and mechanical properties of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe near β high strength titanium alloy sheets have been investigated. Results showed that the alloy mainly included the deformation induced dislocation structures after cold rolling but no obvious band structure, twin crystal or martensite were observed in this work. The texture components, which were affected by process annealing, are mainly γ-fiber, α-fiber and weak Goss texture. The γ-fiber of alloy when process annealed at 780 °C (α/β phase field) is stronger than at 830 °C (β phase field), where the Goss texture of alloy with process annealing temperature of 830 °C is more obvious. Results of annealing heat treatments showed that the recrystallization of the cold rolled was basically completed in a relatively short time of 2 min at 750 °C for 2 min. The refinement of grain size led to a significant increase of plasticity compared to rolled alloy. Results of tensile testing of aged alloy display the excellent combination of strength and plasticity, and the cold rolled alloy with process annealed at α/β phase field exhibits the better mechanical properties than at β phase field.
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spelling pubmed-65393822019-06-05 The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet Du, Zhaoxin Ma, Yan Liu, Fei Xu, Ning Chen, Yanfei Wang, Xiaopeng Chen, Yuyong Gong, Tianhao Xu, Dong Materials (Basel) Article The influences of process annealing temperature during cold rolling on microstructure and mechanical properties of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe near β high strength titanium alloy sheets have been investigated. Results showed that the alloy mainly included the deformation induced dislocation structures after cold rolling but no obvious band structure, twin crystal or martensite were observed in this work. The texture components, which were affected by process annealing, are mainly γ-fiber, α-fiber and weak Goss texture. The γ-fiber of alloy when process annealed at 780 °C (α/β phase field) is stronger than at 830 °C (β phase field), where the Goss texture of alloy with process annealing temperature of 830 °C is more obvious. Results of annealing heat treatments showed that the recrystallization of the cold rolled was basically completed in a relatively short time of 2 min at 750 °C for 2 min. The refinement of grain size led to a significant increase of plasticity compared to rolled alloy. Results of tensile testing of aged alloy display the excellent combination of strength and plasticity, and the cold rolled alloy with process annealed at α/β phase field exhibits the better mechanical properties than at β phase field. MDPI 2019-05-07 /pmc/articles/PMC6539382/ /pubmed/31067798 http://dx.doi.org/10.3390/ma12091478 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Du, Zhaoxin
Ma, Yan
Liu, Fei
Xu, Ning
Chen, Yanfei
Wang, Xiaopeng
Chen, Yuyong
Gong, Tianhao
Xu, Dong
The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet
title The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet
title_full The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet
title_fullStr The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet
title_full_unstemmed The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet
title_short The Influences of Process Annealing Temperature on Microstructure and Mechanical Properties of near β High Strength Titanium Alloy Sheet
title_sort influences of process annealing temperature on microstructure and mechanical properties of near β high strength titanium alloy sheet
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6539382/
https://www.ncbi.nlm.nih.gov/pubmed/31067798
http://dx.doi.org/10.3390/ma12091478
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