INFLUENCE OF LANTHANUM ON THE STRUCTURE AND MECHANICAL PROPERTIES OF ALUMINUMSILICON EUTECTIC ALLOY
来源期刊：Journal of Rare Earths1990年第3期
论文作者：坚增运 商宝禄 鲁德洋
文章页码：206 - 211
摘 要：<正> This paper deals with the characteristics of silicon modification with lanthanum of Al-Si eutectic alloy insand mold and metal mold with optical microscopy,scanning electron microscopy,electron microprobe andX-ray diffractometer.It is found that the amount of lanthanum,liquid alloy condition,holding time and stir-ring liquid influence the modification of silicon.The modification of silicon with lanthanum is of longeffectiveness and has a“incubation time”.The modification can improve the ductility（δs）and tensile strength（σb）of the alloy,but their maximum values are not corresponding to the same amount of lanthanum.
坚增运，商宝禄，鲁德洋
摘 要：<正> This paper deals with the characteristics of silicon modification with lanthanum of Al-Si eutectic alloy insand mold and metal mold with optical microscopy,scanning electron microscopy,electron microprobe andX-ray diffractometer.It is found that the amount of lanthanum,liquid alloy condition,holding time and stir-ring liquid influence the modification of silicon.The modification of silicon with lanthanum is of longeffectiveness and has a“incubation time”.The modification can improve the ductility（δs）and tensile strength（σb）of the alloy,but their maximum values are not corresponding to the same amount of lanthanum.
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