Abstract
AJ51 alloy (5Al-0.6Sr balance Mg in wt.%) reinforced with short δ-Al2O3 fibres (Saffil®) has been deformed in compression at temperatures between 23 and 300 °C. The yield stress and the maximum stress decrease with increasing testing temperature. The influence of reinforcement on both characteristic stresses falls down with increasing temperature. Various strengthening terms were taken into account. Individual strengthening terms were calculated and compared with experimental results. Acoustic emission signal recorded during plastic deformation of the matrix alloy and composite was used to elucidate details of the plastic deformation in the matrix alloy and composite. Residual thermal stresses, generated due to a great difference between the thermal expansion coefficients of the alloy and ceramic reinforcement, in the composite matrix at different strain levels were estimated using neutron diffraction method.
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Trojanová, Z., Farkas, G., Máthis, K., Lukáč, P. (2014). Hardening and Softening Processes in an AJ51 Magnesium Alloy Reinforced with Short Saffil Fibres. In: Alderman, M., Manuel, M.V., Hort, N., Neelameggham, N.R. (eds) Magnesium Technology 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48231-6_80
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DOI: https://doi.org/10.1007/978-3-319-48231-6_80
Publisher Name: Springer, Cham
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