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 effects of the Al content on the as-cast microstructure and mechanical properties ofMg-xAl-0.7Si based magnesium alloys which contained 1%Zn, 0.25%Mn, 0.4%Sb and 0.25%REwere investigated by optical microscopy(OM), scanning electron microscopy(SEM), X-raydiffraction(XRD) analysis and tensile testing. The results indicated that the effects of the Al contentfrom 6% to 8% on the alloy phase types of the experimental alloys were not obvious, and the as-castmicrostructure of the experimental alloys with different Al content were composed mainly of theα-Mg matrix, Mg17Al12 phase, Mg2Si phase and Mg3Sb2 phase. The Chinese script morphology of theMg2Si phase was very obvious in the experimental alloy with 6%Al. With the increase of Al contentfrom 6% to 8%, the yield strength of the experimental Mg-xA1-0.7Si based alloys at roomtemperature increased, but the yield strength of the experimental Mg-xA1-0.7Si based alloys at 150℃ decreased
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.191.pdf
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