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:
It is very popular to improve mechanical properties of Al-Mg-Si alloys by adding otherelement. For example, it is well known that addition of transition metals is useful because therefinement of grain size can be achieved, and with the addition of Cu to Al-Mg-Si alloy canincrease the strength and hardness of the materials. Also, there are a few reports about the additionof Ag, which is particularly good for elongation. However, even now it has not been clarified yetwhy Cu and Ag are useful in improving alloys elongation. In this work, we have investigated thetensile behavior of excess Si-type Al-Mg-Si alloys, which contain Cu. The tensile test and hardnessmeasurement were carried out. Scanning electron microscope (SEM) was used to investigate thefracture surfaces and individual crystallographic orientation. After small additional deformation, thecrack was observed by the interface between higher Schmid Factor (S.F.) and lower S.F. grains. Itwas thought that this crack influenced fracture from fracture surface
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.129.pdf
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