EFFECTS OF IMPURITIES AND RARE EARTH ADDITION ON THE TOUGHENING LEVELS OF Al-Li BASED ALLOYS 2090 AND 1420
L.Meng;T.P.Tu;Y.Z.Yang;M.S.Liu(Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China)
Acta Metallurgica Sinica (English Letters) . 1998, (3): 163 -168 .