00845nam a2200205 a 4500001001300000005001500013008004100028041001300069049003000082052001700112056001400129082001500143100003600158245020000194260003800394300003800432502012000470504003000590900001900620KDM20075939820071210104324071127s2007    ulkad      AL 000   eng  0 aengbkor0 lWM526262lWM526263c2fDP02a620.18bY95e  a530.43240 a620.182211 a윤영옥,d1974-0KAC20187312610aExtrudability and isotropy control for hard-to-form Al and Mg alloys by thixoextrusion=x半溶融 壓出에 의한 難加工性 Al 과 Mg 合金의 壓出性 및 等方性 制御/dYoung-ok Yoon  aSeoul:bSungkyunkwan Univ.,c2007  axi, 177 p.:bill., charts;c30 cm1 aThesis(Ph.D.) --bGraduate School, Sungkyunkwan Univ.,cDept. of Advanced Materials Science and Engineering,d2007.  aBibliography: p. 157-163.10aYoon, Young-ok