A modified parallel constitutive model for elevated temperature flow behavior of Ti-6Al-4V alloy based on multiple regression-Reference-Cited by-同舟云学术

A modified parallel constitutive model for elevated temperature flow behavior of Ti-6Al-4V alloy based on multiple regression

Published:2017-07-14 Issue:7 Volume:108 Page:527-541
ISSN:2195-8556
Container-title:International Journal of Materials Research
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Author:

Cai Jun¹,Shi Jiamin¹,Wang Kuaishe¹,Li Fuguo²,Wang Wen¹,Wang Qingjuan¹,Liu Yingying¹

Affiliation:

1. aSchool of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, P. R. China

2. bSchool of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, P. R. China

Abstract

AbstractConstitutive analysis for hot working of Ti-6Al-4V alloy was carried out by using experimental stress–strain data from isothermal hot compression tests. A new kind of constitutive equation called a modified parallel constitutive model was proposed by considering the independent effects of strain, strain rate and temperature. The predicted flow stress data were compared with the experimental data. Statistical analysis was introduced to verify the validity of the developed constitutive equation. Subsequently, the accuracy of the proposed constitutive equations was evaluated by comparing with other constitutive models. The results showed that the developed modified parallel constitutive model based on multiple regression could predict flow stress of Ti-6Al-4V alloy with good correlation and generalization.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.111514/pdf

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