5. Conclusions
The rolling directions affect the microstructure and texture
of Mg-5Li-1Al-0.5Y alloy, thus making influences on the
mechanical properties of the alloy.
1 The changing of rolling directions can refine the grains.
2 The changing of rolling directions keeps the strength and
elongation remaining at a high level both along RD and TD.
Rolling directions affect the anisotropy of the alloy. The
sheet, of which the RD and ND are both changed between
two passes, has the smallest anisotropy.
3 The changing of rolling directions affects the texture of
Mg-5Li-1Al-0.5Y alloy. It reduces the maximum pole
density, making the highest point distribution region excursion
and the highest point distributes more scatteredly.
4 The addition of yttrium promotes DRX through PSN mechanism,
weakening the basal texture and reducing the anisotropy
of the alloy.
Acknowledgements
This work was supported by the Heilongjiang Province
Youth Skeleton Program (1252G018), Research Fund for the
Doctoral Program of Higher Education (20132304110006),
Project of Science and Technology of Heilongjiang Province
Education Department (12511068), Fundamental Research
Funds for the Central Universities (HEUCF20151006),
Heilongjiang Province Natural Science Foundation (E201420)
and Harbin City Application Technology Research and
Devolopment Project (2015AE005).