Study on Hot Deformation Behavior and Constitutive Relation of Cr-77.5Nb Alloy

Wen Wen Han; Shi Qiang Lu; Li Ping Deng

doi:10.4028/www.scientific.net/AMR.898.72

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 898Study on Hot Deformation Behavior and Constitutive...

Study on Hot Deformation Behavior and Constitutive Relation of Cr-77.5Nb Alloy

Abstract:

Isothermal compression test at constant strain rate for Cr-77.5Nb alloy were performed on Gleeble simulator with conditions of deformation temperature from 800 to 1200°C and strain rate from 0.001s^-1 to 0.1s^-1. The influence of deformation parameters including temperature, strain rate and strain related with flow stress during hot deformation were investigated and the constitutive relation of Cr-77.5Nb alloy was established by stepwise regression method. The result of error analysis shows that the constitutive relation established has high accuracy and can well characterize the hot deformation behavior of this alloy.

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Periodical:

Advanced Materials Research (Volume 898)

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72-75

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.898.72

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Online since:

February 2014

Authors:

Wen Wen Han*, Shi Qiang Lu, Li Ping Deng

Keywords:

Constitutive Relation, Cr-77.5Nb Alloy, Stepwise Regression

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