The ingredients of yttrium-based heavy rare earth magnesium nodulizing alloys was investigated, as well as their effects to resist nodulization fading and nodular graphite degeneration was test.

• 研究了钇基重稀土镁球化剂的组成,试验了钇基重稀土镁复合球化剂对抗球化衰退、抗石墨球畸变的作用。