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:
The effect of Ca and Sr content on the microstructure and mechanical properties of a cast AZ91magnesium alloy is investigated. Ca and Sr additions in AZ91 magnesium alloy are expected highcreep resistance. The microstructure of the alloy exhibits the dendritic α-matrix and thesecond-phases forming networks on the grain boundary. Tensile tests at elevated temperaturesbetween 448 and 523K reveal that the creep resistance was improved with increasing the additionalamount of Ca, especially more than 1.0wt%. From the perspective of grain refinement effect, it isexpected that the additions of Ca and Sr to AZ91 magnesium alloy not only improve creepresistance but also improve mechanical properties at room temperature
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.141.pdf
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