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 effect of second-phase particles on the grain refinement of AZ61 and AZ91 Mg-Al-Znalloys with different volume fractions of β-Mg17Al12 phase particles during equal channel angularextrusion (ECAE) has been investigated. The microstructure were observed by optical microscopy(OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), whichrevealed that grain refinement was enhanced by second phase particles at initial stage of ECAE. Andfiner grains with the high angle grain boundaries (HAGBs) and disperse second-phase particles couldbe obtained in AZ61 and AZ91 after 8 passes of ECAE
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.315.pdf
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