Effect of Cerium on Morphology of Phosphide Eutectic
来源期刊：JOURNAL OF RARE EARTHS2000年第1期
论文作者：KOZLOV L Ya CHEN Gui-ru LIANG Ji VOROBYEV A P WU De-hai WEI Bing-qing
Key words：rare earths; phosphorus; phosphide eutectic; eutectic cell;
Abstract: The phosphide eutectic formation process in high purity Fe-4.6%C alloy, in which 0.02%～1.0%P was added, was studied with DTA, SEM and EDS, and the effect of cerium on the morphology of phosphide eutectic in the ternary Fe-C-P alloy was also investigated. The results show that the ternary phosphide eutectic with the addition of 0.04%P is formed at low cooling rate. After cerium is added, the morphology of phosphide eutectic is changed from non-continuous or continuous distribution net to round or nodular form locating along the eutectic cell boundaries.
KOZLOV L Ya1，CHEN Gui-ru2，LIANG Ji2，VOROBYEV A P1，WU De-hai2，WEI Bing-qing2
(1.Institute of Steel and Alloys, Moscow 117936, Russia;
2.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China)
Abstract:The phosphide eutectic formation process in high purity Fe-4.6%C alloy, in which 0.02%～1.0%P was added, was studied with DTA, SEM and EDS, and the effect of cerium on the morphology of phosphide eutectic in the ternary Fe-C-P alloy was also investigated. The results show that the ternary phosphide eutectic with the addition of 0.04%P is formed at low cooling rate. After cerium is added, the morphology of phosphide eutectic is changed from non-continuous or continuous distribution net to round or nodular form locating along the eutectic cell boundaries.
Key words:rare earths; phosphorus; phosphide eutectic; eutectic cell;
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