Effect of preliminary strain hardening on the flow stress of titanium and a titanium alloy during shock compression

S. V. Razorenov; A. S. Savinykh; E. B. Zaretsky; G. I. Kanel; Yu R. Kolobov

doi:10.1134/1.1913977

Effect of preliminary strain hardening on the flow stress of titanium and a titanium alloy during shock compression

S. V. Razorenov, A. S. Savinykh, E. B. Zaretsky, G. I. Kanel, Yu R. Kolobov

Department of Mechanical Engineering

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

18 Scopus citations

Abstract

The effect of preliminary strain hardening of VT1-0 titanium and a Ti-6 wt % Al-4 wt % V alloy on their mechanical properties under quasi-static and high-rate (>10⁵ s^-1) loading is studied. Preliminary hardening is accomplished using equal-channel angular pressing (which results in a significant decrease in the grain size and a twofold increase in the quasi-static yield strength) and shock waves. High-rate deformation is attained via shock-wave loading of samples. The experimental results show that structural defects weaken the dependence of the yield strength on the strain rate. The difference in the rate dependences can be so high that the effect of these defects on the flow stress can change sign when going from quasi-static to high-rate loading.

Original language	English
Pages (from-to)	663-669
Number of pages	7
Journal	Physics of the Solid State
Volume	47
Issue number	4
DOIs	https://doi.org/10.1134/1.1913977
State	Published - 20 Jul 2005

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Effect of preliminary strain hardening on the flow stress of titanium and a titanium alloy during shock compression",

abstract = "The effect of preliminary strain hardening of VT1-0 titanium and a Ti-6 wt % Al-4 wt % V alloy on their mechanical properties under quasi-static and high-rate (>105 s-1) loading is studied. Preliminary hardening is accomplished using equal-channel angular pressing (which results in a significant decrease in the grain size and a twofold increase in the quasi-static yield strength) and shock waves. High-rate deformation is attained via shock-wave loading of samples. The experimental results show that structural defects weaken the dependence of the yield strength on the strain rate. The difference in the rate dependences can be so high that the effect of these defects on the flow stress can change sign when going from quasi-static to high-rate loading.",

author = "Razorenov, {S. V.} and Savinykh, {A. S.} and Zaretsky, {E. B.} and Kanel, {G. I.} and Kolobov, {Yu R.}",

note = "Funding Information: ACKNOWLEDGMENTS This work was supported by the program of basic research of the Presidium of the Russian Academy of Sciences “Thermal Physics and Mechanics of Intense Energy Actions” and the program of the Department of Energy, Mechanics, Science of Machines, and Control Problems of the Russian Academy of Sciences “Structural Mechanics of Materials and Construction Members: Interaction of Nano-, Micro-, Meso-, and Macroscales during Deformation and Fracture.”",

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AU - Razorenov, S. V.

AU - Savinykh, A. S.

AU - Zaretsky, E. B.

AU - Kanel, G. I.

AU - Kolobov, Yu R.

N1 - Funding Information: ACKNOWLEDGMENTS This work was supported by the program of basic research of the Presidium of the Russian Academy of Sciences “Thermal Physics and Mechanics of Intense Energy Actions” and the program of the Department of Energy, Mechanics, Science of Machines, and Control Problems of the Russian Academy of Sciences “Structural Mechanics of Materials and Construction Members: Interaction of Nano-, Micro-, Meso-, and Macroscales during Deformation and Fracture.”

PY - 2005/7/20

Y1 - 2005/7/20

N2 - The effect of preliminary strain hardening of VT1-0 titanium and a Ti-6 wt % Al-4 wt % V alloy on their mechanical properties under quasi-static and high-rate (>105 s-1) loading is studied. Preliminary hardening is accomplished using equal-channel angular pressing (which results in a significant decrease in the grain size and a twofold increase in the quasi-static yield strength) and shock waves. High-rate deformation is attained via shock-wave loading of samples. The experimental results show that structural defects weaken the dependence of the yield strength on the strain rate. The difference in the rate dependences can be so high that the effect of these defects on the flow stress can change sign when going from quasi-static to high-rate loading.

AB - The effect of preliminary strain hardening of VT1-0 titanium and a Ti-6 wt % Al-4 wt % V alloy on their mechanical properties under quasi-static and high-rate (>105 s-1) loading is studied. Preliminary hardening is accomplished using equal-channel angular pressing (which results in a significant decrease in the grain size and a twofold increase in the quasi-static yield strength) and shock waves. High-rate deformation is attained via shock-wave loading of samples. The experimental results show that structural defects weaken the dependence of the yield strength on the strain rate. The difference in the rate dependences can be so high that the effect of these defects on the flow stress can change sign when going from quasi-static to high-rate loading.

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JO - Physics of the Solid State

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ER -

Effect of preliminary strain hardening on the flow stress of titanium and a titanium alloy during shock compression

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