A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys

Ti-6Al-2V-0.5Zr-1.5Mo alloys is a new type of titanium alloys developed on the basis of Ti-6Al-4V alloys. Compared with Ti-6Al-4V alloys, they are low in cost and excellent in performance. To offer an idea for hot working production, their thermal deformation behavior was studied through a Gleeble35...

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Main Authors: Ke Ren, Biju Zheng
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/acb0b6
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author Ke Ren
Biju Zheng
author_facet Ke Ren
Biju Zheng
author_sort Ke Ren
collection DOAJ
description Ti-6Al-2V-0.5Zr-1.5Mo alloys is a new type of titanium alloys developed on the basis of Ti-6Al-4V alloys. Compared with Ti-6Al-4V alloys, they are low in cost and excellent in performance. To offer an idea for hot working production, their thermal deformation behavior was studied through a Gleeble3500 machine, and the microstructure evolution during the thermal deformation was analyzed. After the experiment, the true stress-strain curves at strain rates of 0.001 s ^−1 , 0.01 s ^−1 , 0.1 s ^−1 and 1 s ^−1 at temperatures of 800 °C, 850 °C, 900 °C, and 950 °C were worked out. The result showed that the flow stress decreased as the deformation temperature rose and the strain rate fell. The peak stress constitutive equation and flow stress prediction model were built through the Arrhenius equation. The correlation coefficient between the predicted data and the experimental data reached 0.9811, which meant that the flow stress could be predicated accurately through Arrhenius equation. In addition, the processing map was established based on the DMM theory, and the best process parameters of such an alloy were figured out.
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spelling doaj.art-c6f275b77cff4699869f3fdfb43f94092023-08-09T16:05:37ZengIOP PublishingMaterials Research Express2053-15912023-01-0110101580210.1088/2053-1591/acb0b6A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloysKe Ren0https://orcid.org/0000-0001-8739-8346Biju Zheng1Faculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming, 650093, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming, 650093, People’s Republic of ChinaTi-6Al-2V-0.5Zr-1.5Mo alloys is a new type of titanium alloys developed on the basis of Ti-6Al-4V alloys. Compared with Ti-6Al-4V alloys, they are low in cost and excellent in performance. To offer an idea for hot working production, their thermal deformation behavior was studied through a Gleeble3500 machine, and the microstructure evolution during the thermal deformation was analyzed. After the experiment, the true stress-strain curves at strain rates of 0.001 s ^−1 , 0.01 s ^−1 , 0.1 s ^−1 and 1 s ^−1 at temperatures of 800 °C, 850 °C, 900 °C, and 950 °C were worked out. The result showed that the flow stress decreased as the deformation temperature rose and the strain rate fell. The peak stress constitutive equation and flow stress prediction model were built through the Arrhenius equation. The correlation coefficient between the predicted data and the experimental data reached 0.9811, which meant that the flow stress could be predicated accurately through Arrhenius equation. In addition, the processing map was established based on the DMM theory, and the best process parameters of such an alloy were figured out.https://doi.org/10.1088/2053-1591/acb0b6Ti-6Al-2V-0.5Zr-1.5Mohot deformationconstitutive equationhot processing map
spellingShingle Ke Ren
Biju Zheng
A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys
Materials Research Express
Ti-6Al-2V-0.5Zr-1.5Mo
hot deformation
constitutive equation
hot processing map
title A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys
title_full A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys
title_fullStr A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys
title_full_unstemmed A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys
title_short A study on hot deformation behavior of Ti-6Al-2V-0.5Zr-1.5Mo alloys
title_sort study on hot deformation behavior of ti 6al 2v 0 5zr 1 5mo alloys
topic Ti-6Al-2V-0.5Zr-1.5Mo
hot deformation
constitutive equation
hot processing map
url https://doi.org/10.1088/2053-1591/acb0b6
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