MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Measurement of Thermal Expansion Coefficient of 18R-Synchronized Long-Period Stacking Ordered Magnesium Alloy
Nobuhiro YasudaShigeru Kimura
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2016 Volume 57 Issue 6 Pages 1010-1013

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Abstract

We measured the thermal expansion coefficients of an 18R-synchronized long-period stacking ordered magnesium alloy (Mg85Zn6Y9) and an α-phase pure magnesium (α-Mg). This was achieved by using a Gandolfi camera, which was attached on a high precision diffractometer at SPring-8 BL40XU beamline. By using this system, fine powder diffraction data could be obtained even from a highly oriented Mg85Zn6Y9 polycrystal at different temperatures between 95 and 440 K. The thermal expansion coefficients along a- and c-axes were determined from the refined cell parameters. The thermal expansion coefficients of the Mg85Zn6Y9 are smaller than those of the α-Mg.

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© 2016 The Japan Institute of Metals and Materials
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