Distribution of Residual Stresses in 1070 Single Phase Aluminium with Grain Size Gradient Formed by RBT Treatment

Y. Enomoto; T. Nishimura; H. Sato; S.I. Tanaka

doi:10.4028/www.scientific.net/MSF.768-769.343

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HomeMaterials Science ForumMaterials Science Forum Vols. 768-769Distribution of Residual Stresses in 1070 Single...

Distribution of Residual Stresses in 1070 Single Phase Aluminium with Grain Size Gradient Formed by RBT Treatment

Abstract:

Control of microstructure in single phase alloys are relatively limited and less way of expedient are available compared to multiphase alloys. Authors have attempted microstructural control of single phase alloy by formation of distribution of plastic strain and residual stresses. In this paper, residual stress distribution of 1070 single phase aluminium with RBT (Rotary Bending and Tensile) loading have been measured by 2D-XRD method. After suitable heat treatment, the alloy show spatial grain size distribution of 30-150μm. Measured stress tensor enabled by 2D-XRD method clealy show distribution of stress components of residual stress tensors and principal stresses. Direction of the principal stresses gradually rotate depending on position from center to radial direction. Even after annealing, the direction of principal axis agree with that of torsion during the RBT treatment. This results show possibility of control of microstructure in single phase material accomplished by introduction of gradual distribution of residual stresses.

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Periodical:

Materials Science Forum (Volumes 768-769)

Pages:

343-350

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.768-769.343

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Online since:

September 2013

Authors:

Y. Enomoto, T. Nishimura, H. Sato, S.I. Tanaka

Keywords:

Combined Loading, Rotary Bending, Stress Tensor, Structure Gradient

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References

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