In Situ Investigation of Orientation Changes during Heating of Extruded AZ31

Sang Bong Yi; Heinz Günter Brokmeier; Jens Homeyer

doi:10.4028/www.scientific.net/MSF.561-565.183

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Mechanical Properties and Press Formability of Mg Alloy Processed by Cross-Roll Rolling
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In Situ Investigation of Orientation Changes during Heating of Extruded AZ31
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Development of New Types of Magnesium Alloys Containing Sr or RE Elements
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In Situ Investigation of Orientation Changes during Heating of Extruded AZ31

Abstract:

The orientation changes during heating of extruded AZ31 were investigated using synchrotron Xrays by in-situ experiments. The as-extruded sample shows a strong <10.0>-fiber texture which is generally observed after round extrusion. The initial <10.0>-fiber texture, in which the <10.0> direction of the hexagonal crystallites is parallel to extrusion direction, starts to change to <11.0>- fiber component at 300 °C. The orientation change rate shows an exponential relation to the heating temperature and the soaking time. The microstructure observations, prior and post heat treatment, indicate that the texture changes occur mainly during grain growth.