Deformation Behavior of Ti-6Al-4V and Ti-6.85Al-1.6V Alloy with a Globular Microstructure

Jeoung Han Kim; S. Lee Semiatin; Chong Soo Lee

doi:10.4028/www.scientific.net/MSF.475-479.2965

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Load Relaxation Behavior of Ultra-Fine Grained Ti-6Al-4V Alloy
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Superplasticity and Fracture Morphologies during Superplastic Deformation of a Commercial TC6 Titanium Alloy
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Deformation Behavior of Ti-6Al-4V and Ti-6.85Al-1.6V Alloy with a Globular Microstructure
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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Deformation Behavior of Ti-6Al-4V and...

Deformation Behavior of Ti-6Al-4V and Ti-6.85Al-1.6V Alloy with a Globular Microstructure

Abstract:

The high temperature deformation mechanisms of two phase a+b alloy and a near-a alloy were investigated, and compared within the framework of inelastic-deformation theory. For this purpose, load-relaxation tests were conducted on the two alloys at temperatures of 750~900°C. The flow stress-vs.-strain rate curves for both alloys were well fit with inelastic deformation equations describing dislocation glide and grain boundary sliding. The amount of grain boundary sliding resistance was higher in the near-a alloy rather than the two phase a+b alloy due to difficulty in stress relaxation at triple junction region.

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Materials Science Forum (Volumes 475-479)

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2965-2968

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.2965

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Online since:

January 2005

Authors:

Jeoung Han Kim, S. Lee Semiatin, Chong Soo Lee

Keywords:

Flow Behaviour, Grain Boundary, Internal Variable Theory, Ti₆Al₄V Alloy, Two Phase

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References

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DOI: 10.4028/www.scientific.net/msf.426-432.689

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