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 relationship between structure, ionic radius and electronegativity and solubility of thevarious rare-earth elements in Mg was studied. It is found that light RE(La-Sm, Eu, Yb) have morecomplicated phase relation with Mg but the heavy RE(Gd-Lu, Sc) have the similar crystal structurewith magnesium. Also it is found that the less electronegativity difference between Mg and RE is, themore solubility limit of RE in Mg is. The fact of the RE solubility decreased in magnesium withlowering temperature suggests that there is a possibility of Mg supersaturated solid solution formationand it will decomposition during aging. According to the rule, an megnesium alloy with higherstrength feature was developed. Their mechanical properties are UTS 347MPa, YTS 290MPa andelongation 12.5% at room temperature
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.143.pdf
Permalink