ISSN:
1662-9752
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Microstructures and tensile properties of Mg-8Zn-4Al-xCa[removed info]x=0.6wt.%, 1.0wt.%, 1.3wt.%,named as alloy 1#, 2# and 3# , respectively)extruded magnesium alloy tube were studied at room andelevated temperature. The results show that Ca can increase tensile strength of the alloy at 150[removed info] and200°C significantly. At the temperature of 200°C, alloy 3# achieved optimal tensile properties, ofwhich the ultimate tensile strength, the yield strength and the elongation were 165.8MPa, 108.7Mpaand 41.5% respectively. Compared with the properties of as cast ZAC8506 Magnesium alloy, it isshown that the tensile properties of alloy 3# are much higher than that of ZAC8506 at both roomtemperature and 150°C. Alloy 3# also gets better tensile performance than AZ91D extruded tubeproduced in the same way at the temperature of 200°C Mg2Al3 and Ca2Mg5Zn13 phases are found inthe microstructure which should contribute to the higher performance of alloy 3# at elevatedtemperature
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.305.pdf
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