ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Dynamic recrystallization behavior of Mg-3.1wt.%Al-0.1wt.%Y alloy was investigated.During extrusion, dynamic recrystallization occurred and very fine microstructure was obtained. Wecompared the relationship between Zener-Hollomon parameter, Z, and the dynamicallyrecrystallized grain size, drec, and between the normalized recrystallized grain size, drec/d0, where d0is the initial grain size, and Z for Mg-3.1wt. %Al-0.1wt.%Y with commercial Mg-3Al-0.5Zn alloy.As the result, the dynamically recrystallized grain size of Mg-3Al-0.1Y was finer than that ofMg-3Al-0.5Zn alloy under the equivalent Z, while the initial grain size of Mg-3Al-0.1Y was coarserthan Mg-3Al-0.5Zn alloy. The normalized grain size for Mg-3Al-0.1Y alloy was much smaller thanthat of Mg-3Al-0.5Zn alloy under the equivalent Z. We conclude that small addition of Y to Mg-Alalloys is effective for grain refinement by dynamic recrystallization
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.433.pdf
