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Characterization and Representation of Crystallographic Texture Fields in Processed Alloys

Published online by Cambridge University Press:  02 July 2020

M.P. Miller ,
T.J. Turner  and
J.A. Sutliff
M.P. Miller
Affiliation:
Sibley School of Mechanical and Aerospace Engineering Cornell University, Ithaca, NY14853
T.J. Turner
Affiliation:
Sibley School of Mechanical and Aerospace Engineering Cornell University, Ithaca, NY14853
J.A. Sutliff
Affiliation:
GE Corporate Research and Development Center 1 Research Circle, Niskayuna, NY12309
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Extract

Deformation and thermal processing operations can produce structurally heterogeneous and anisotropic alloys. Thick, hot-rolled aluminum plate is an excellent example of such a material. Due to the plate size and thermomechanical conditions experienced by the plate during processing, significant gradients in material structure arise. These gradients are especially strong in the through-thickness or normal direction (ND) of the plate. In AA 7050, an aluminum alloy developed for thick plate applications, gradients in microporosity, grain morphology and crystallographic texture are known to exist. These features have been linked to material properties and performance measures in this alloy. Recent advances in high speed machining technology have made it possible to consider thick AA 7050 plate for an increasingly large number of airframe components. Because of its inherent heterogeneity, however, designing flight-critical components machined from AA 7050 plate will require one to quantify and mathematically represent the variation of the relevant microstructural gradients.

Type
Electron diffraction in the SEM: automated EBSP and its application
Information
Microscopy and Microanalysis , Volume 5 , Issue S2: Proceedings: Microscopy & Microanalysis '99, Microscopy Society of America 57th Annual Meeting, Microbeam Analysis Society 33rd Annual Meeting, Portland, Oregon August 1-5, 1999 , August 1999 , pp. 234 - 235
Copyright
Copyright © Microscopy Society of America

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References

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