High-Temperature Flow Behaviour and Constitutive Equations for a TC17 Titanium Alloy-Reference-Cited by-同舟云学术

High-Temperature Flow Behaviour and Constitutive Equations for a TC17 Titanium Alloy

Published:2018-08-31 Issue:2019 Volume:38 Page:168-177
ISSN:2191-0324
Container-title:High Temperature Materials and Processes
language:en
Short-container-title:

Author:

Shi-feng Liu¹²,Jia-min Shi¹,Xiao-kang Yang¹,Jun Cai¹,Qing-juan Wang¹

Affiliation:

1. School of Metallurgical Engineering , Xi’an University of Architecture and Technology , Xi’an 710055 , China

2. State Key Laboratory of Powder Metallurgy , Central South University , Changsha 410083 , China

Abstract

Abstract In this study, the high-temperature deformation behaviour of a TC17 titanium alloy was investigated by isothermal hot compression tests in a wide range of temperatures (973–1223 K) and strain rates (0.001–10 s−1). Then, the constitutive equations of different phase regimes (α + β and single β phases) were developed on the basis of experimental stress-strain data. The influence of the strain has been incorporated in the constitutive equation by considering its effect on different material constants for the TC17 titanium alloy. Furthermore, the predictability of the developed constitutive equation was verified by the correlation coefficient and average absolute relative error. The results indicated that the obtained constitutive equations could predict the high-temperature flow stress of a TC17 titanium alloy with good correlation and generalization.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,Mechanics of Materials,Condensed Matter Physics,General Materials Science

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