ISSN:
1662-9752
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:
The present work studied the precipitate microstructures in as-cast Mg-Zn-Y-Zr alloys. Theexperimental result showed that there is significant number of small precipitates within the grainsbesides the icosahedral quasicrystals along the grain boundaries. Among these precipitates, a newphase has been identified. The new phase displays square morphologies with the size in the range of200 nm to 2 μm. According to the energy dispersive spectrometer (EDS), this phase could be ametallic Y-riched compound. The diffraction patterns can be indexed with an f.c.c. structure with thelattice parameter a = 0.52±0.1 nm. The structure does not agree with any precipitate structures thathave been reported from the previous studies of Mg-Zn-Y alloys
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.203.pdf
