Deformation Behavior of Magnesium Single Crystal in c-Axis Compression and a-Axis Tension

Abstract:

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In general, deformation behavior of magnesium in compression is different from tensile. To investigate deformation behavior of magnesium single crystals by non-basal slips and twins, c-axis compression and a-axis tension tests were performed in the range of 77K-573K. The crystals were yielded by second order pyramidal slip, and the yield stress shows anomalous temperature dependence (increased with increasing temperature) between 203K and 293K. Yield stress of c-axis compression was bigger than that of a-axis tensile. In compression, fracture surface were (11 4) under 293K and were {30 4} above 373K, and fracture strain was smaller than the case of tension test. {10 1}-{10 2} double twin were activated at higher temperature and the crystal, therefore, fractured along the twin interface.

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Main Theme:

Edited by:

Jian-Feng Nie and Allan Morton

Pages:

699-702

DOI:

10.4028/www.scientific.net/MSF.654-656.699

Citation:

S. Ando et al., "Deformation Behavior of Magnesium Single Crystal in c-Axis Compression and a-Axis Tension", Materials Science Forum, Vols. 654-656, pp. 699-702, 2010

Online since:

June 2010

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Price:

$35.00

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