Hot workability for as-cast and as-forged TiNiNb alloys

Wei Zhao; Fuguo Li; Yi Sun; Genlin Yang

Hot workability for as-cast and as-forged TiNiNb alloys

Wei Zhao, Fuguo Li, Yi Sun, Genlin Yang

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The deformation behavior of as-cast and as-forged TiNiNb alloy was studied at elevated temperature by compressive deformation tests from Gleeble-1500D Thermal Simulator. Based on the analyses, constitutive equations which related the flow stress to temperature, strain rate and strain have been respectively established. Results indicate that the flow stresses of as-cast TiNiNb alloy are slightly higher than that of as-forged alloy under the same condition. The optimum parameter ranges for processing of as-cast TiNiNb alloy are below 0.1 s^-1 for strain rate and below 0.4 for strain, while the optimum parameter ranges for processing of as-forged TiNiNb alloy are below 0.56 s^-1 for strain rate and below 0.5 for strain.

Original language	English
Pages (from-to)	892-896
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	40
Issue number	5
State	Published - May 2011

Keywords

Activation energy
Constitutive equation
TiNiNb alloy

Cite this

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title = "Hot workability for as-cast and as-forged TiNiNb alloys",

abstract = "The deformation behavior of as-cast and as-forged TiNiNb alloy was studied at elevated temperature by compressive deformation tests from Gleeble-1500D Thermal Simulator. Based on the analyses, constitutive equations which related the flow stress to temperature, strain rate and strain have been respectively established. Results indicate that the flow stresses of as-cast TiNiNb alloy are slightly higher than that of as-forged alloy under the same condition. The optimum parameter ranges for processing of as-cast TiNiNb alloy are below 0.1 s-1 for strain rate and below 0.4 for strain, while the optimum parameter ranges for processing of as-forged TiNiNb alloy are below 0.56 s-1 for strain rate and below 0.5 for strain.",

keywords = "Activation energy, Constitutive equation, TiNiNb alloy",

author = "Wei Zhao and Fuguo Li and Yi Sun and Genlin Yang",

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journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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T1 - Hot workability for as-cast and as-forged TiNiNb alloys

AU - Zhao, Wei

AU - Li, Fuguo

AU - Sun, Yi

AU - Yang, Genlin

PY - 2011/5

Y1 - 2011/5

N2 - The deformation behavior of as-cast and as-forged TiNiNb alloy was studied at elevated temperature by compressive deformation tests from Gleeble-1500D Thermal Simulator. Based on the analyses, constitutive equations which related the flow stress to temperature, strain rate and strain have been respectively established. Results indicate that the flow stresses of as-cast TiNiNb alloy are slightly higher than that of as-forged alloy under the same condition. The optimum parameter ranges for processing of as-cast TiNiNb alloy are below 0.1 s-1 for strain rate and below 0.4 for strain, while the optimum parameter ranges for processing of as-forged TiNiNb alloy are below 0.56 s-1 for strain rate and below 0.5 for strain.

AB - The deformation behavior of as-cast and as-forged TiNiNb alloy was studied at elevated temperature by compressive deformation tests from Gleeble-1500D Thermal Simulator. Based on the analyses, constitutive equations which related the flow stress to temperature, strain rate and strain have been respectively established. Results indicate that the flow stresses of as-cast TiNiNb alloy are slightly higher than that of as-forged alloy under the same condition. The optimum parameter ranges for processing of as-cast TiNiNb alloy are below 0.1 s-1 for strain rate and below 0.4 for strain, while the optimum parameter ranges for processing of as-forged TiNiNb alloy are below 0.56 s-1 for strain rate and below 0.5 for strain.

KW - Activation energy

KW - Constitutive equation

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ER -

Hot workability for as-cast and as-forged TiNiNb alloys

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Keywords

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