The Nonferrous Metals Society of China
Effects of combined addition of Y and Ca on microstructure and mechanical properties of die casting AZ91 alloy
WANG Feng(王 峰), WANG Yue(王 越), MAO Ping-li(毛萍丽), YU Bao-yi(于宝义), GUO Quan-ying(郭全英)
Transactions of Nonferrous Metals Society of China . 2010, (Special 2): 311 -317 .