Abstract
Wrought magnesium alloy bars, sections and tubes have been extensively used in the aerospace, electronics and automotive industries, where component weight is of concern. The operating temperature of these components is typically limited to below 100°C, since appreciable creep relaxation of the wrought alloys takes place above this temperature.
The objective of this study was to investigate the high temperature creep performance of two wrought magnesium alloys (AE42 and EZ33) developed for elevated temperature applications. Compressive creep behavior of extruded rods was studied at room temperature and at 150°C using the nano-indentation creep technique (on the microscale) and neutron diffraction (on the macroscale). Measurements were performed in the extrusion and radial directions to observe the effect of texture on the creep resistance, hardness and elastic modulus of the alloys. Microscopic examination of the alloys revealed that the distribution of second phases along the grain boundaries was critical to the alloy’s creep resistance.
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© 2011 TMS (The Minerals, Metals & Materials Society)
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Fletcher, M., Bichler, L., Sediako, D., Klassen, R. (2011). Compressive Creep Behaviour of Extruded Mg Alloys at 150 °C. In: Sillekens, W.H., Agnew, S.R., Neelameggham, N.R., Mathaudhu, S.N. (eds) Magnesium Technology 2011. Springer, Cham. https://doi.org/10.1007/978-3-319-48223-1_17
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DOI: https://doi.org/10.1007/978-3-319-48223-1_17
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48568-3
Online ISBN: 978-3-319-48223-1
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