Neutron diffraction determination of macro and microstresses in an Al-Si-Mg composite and observed changes with plastic strain
Loading...
Date
2012-02-02
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Institute of Physics
Abstract
Neutron diffraction has been used to measure macro- and microstress components as functions of position within tension and compression samples of an Al-Si-Mg composite. The influences on these components of both tensile and compressive plastic deformation have been studied. Deformation to about 1.5% plastic strain (for both tension and compression) relieves the macrostress and most of the thermal microstress but sets up new residual microstresses. The results for the microstresses measured for the silicon phase following plastic deformation and unloading, are compared with the predictions of a finite-element model for the micromechanical behaviour of the alloy.
Description
Keywords
Neutron diffraction, Alkaline earth metals, Coherent scattering, Elements, Fabrication, Mathematical solutions, Mechanical properties, Metals, Organic compounds, Organic polymers, Petrochemicals, Semimetals
Citation
Davidson, C. J., Finlayson, T. R., Griffiths, J. R., Luzin, V., Wang, Q. G., Rajakesari, J., & Llorca, J. (2012). Neutron diffraction determination of macro and microstresses in an Al-Si-Mg composite and observed changes with plastic strain. Paper presented to the 36th Annual Condensed Matter and Materials Meeting, Wagga 2012, Charles Sturt University, Wagga Wagga, NSW, 31st January – 3rd February, 2012. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2012/p6.pdf