Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1573955 | Materials Science and Engineering: A | 2015 | 21 Pages |
Abstract
In the present study, the effect of precipitate characteristics on {101¯2} extension twinning have been studied in a Z6 magnesium alloy. A strongly textured Z6 alloy plate was mechanically tested in twinning dominated orientation in solution treated and aged states. Optical microscopy, transmission electron microscopy (TEM) and visco-plastic self consistent (VPSC) modelling are used to examine the effect of precipitate characteristics on twinning. The yield stress was observed to increase by â¼80 MPa during ageing and it was estimated that CRSS for twinning increased by â¼29 MPa based on VPSC simulations. The increment of twin system strengthening can be attributed to back stress generated by elastically deforming particles.
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Authors
J. Jain, P. Cizek, W.J. Poole, M.R. Barnett,