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TECHNICAL PAPERS

Cyclic Deformation Behavior and Dislocation Substructures of Hexagonal Zircaloy-4 Under Out-of-Phase Loading

[+] Author and Article Information
Xiao Lin

State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, P.R. China

J. Eng. Mater. Technol 122(1), 42-48 (Aug 02, 1999) (7 pages) doi:10.1115/1.482763 History: Received November 03, 1998; Revised August 02, 1999
Copyright © 2000 by ASME
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References

Figures

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{101̄0} Prism pole figure of the initial Zr-4, RD-rolling direction, TD-transverse direction
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Out-of-phase loading paths with different (a) phase angles, (b) equivalent strain ranges
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Delay angle, θ, vs path length increment, Δl, under the same equivalent strain range of 0.8% and different phase angles. (a) 30°, (b) 60°, and (c) 90°
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Delay angle, θ, path length increment, Δl, under circular loading with different equivalent strain ranges. (a) 0.597%, (b) 0.403%
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Equivalent stress response, |σ|, versus path length increment, Δl, under the same equivalent strain range of 0.8% and different phase angles, (a) 30°, (b) 60°, and (c) 90°
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Equivalent stress response, |σ|, versus path length increment, Δl, under circular loading with the different equivalent strain ranges (a) 0.507% and (b) 0.403%
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Peak stress versus cyclic number curves of Zr-4 under different phase angles and different equivalent strain ranges
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Influence of the degree of nonproportionality and equivalent strain ranges on the additional hardening: A-uniaxial, M-monotonic, C-cyclic, B-biaxial
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Dislocation structures of Zr-4 under the same equivalent strain range of 0.8 percent and different phase angles. (a) 30°, g=101̄0, incident beam ‖[1̄21̄9], (b) 60°, g=101̄0, incident beam ‖[1̄21̄9] and (c) 90°, g=101̄0, incident beam ‖[1̄21̄9].
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Dislocation structures of Zr-4 under circular loading with the different equivalent strain ranges (a) 0.587%, g=101̄0, incident beam ‖[2̄42̄3] and (b) 0.403%, g=101̄0, incident beam ‖[1̄21̄1]

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