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:
In this study, the crystal structure and mechanical property of AZ80-2%Li Mg alloy areinvestigated. Experimental results show that the density of AZ80 Mg alloy can be reduced to be 1.71g/cm3 by addition of 2wt% Li. The as-extruded AZ80-2%Li Mg alloy exhibits a two-phasemicrostructure of α and β phases, with fine strips along the extrusion direction. The fracture strainincreases significantly with increasing deformation temperature, and the tensile strengths hardlychange at below 100oC. The tensile strength increases, but fracture strain decreases, with increasingstrain rate. The 400°C solid-solution treated AZ80-2%Li Mg alloy will produce the AlLi precipitateafter aging at 170°C, and produce the Mg17Al12 precipitate after aging at 250°C. The AZ80-2%Li Mgalloy with aging at both 170°C and 250°C will exhibit the phenomenon of precipitation hardening
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.51.65.pdf
Permalink