Study on Constitutive Relationship of Ti-6Al-4V-Rare Earth Titanium Alloy during High Temperature Deformation

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Abstract:

According to compressive test date, relationship between flow stress, temperature, strain rate and strain is studied through single and multiple regression, and constitutive equation is researched. The results show the relationship between flow stress and stain is applied to hyperbolic sine equation in the hot compressive deformation of Ti-6Al-4V-rare earth titanium alloy. Relationship between logarithmic hyperbolic sine of its flow stress and reciprocal of absolute temperatures is liner, and hot compressive deformation is controlled by activation energy.

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Periodical:

Advanced Materials Research (Volumes 479-481)

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327-331

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February 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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