中国稀土学报(英文版)
中國稀土學報(英文版)
중국희토학보(영문판)
JOURNAL OF RARE EARTHS
2001年
1期
49-52
,共4页
李华基%刘昌明%李革胜%薛寒松
李華基%劉昌明%李革勝%薛寒鬆
리화기%류창명%리혁성%설한송
A357 alloy was modified with lanthanum -rich mischmetal, and modification effects of the mischmetal on its as-cast and heat-treated structures, mechanical properties and hydrogen content were investigated and compared with that of strontium metal. It is shown that the modification effect of La-rich mischmetal is better than that of strontium in the aspects of refining eutectic silicon, ejecting hydrogen from the melt and improving comprehensive mechanical properties of the alloy. Therefore Al-Si-Mg alloy with high strength and improved toughness can be obtained by modification with La-rich mischmetal.
