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针对目前关于磷对石墨化影响问题尚无一致意见，作者较详细地研究了磷对Ｆｅ４６％Ｃ合金组织和结构的影响。结果表明，随着磷含量的提高，石墨的尺寸增大，共晶团尺寸缩小。并从热力学角度分析了磷含量和温度对碳的活性影响。针对目前关于磷对石墨化影响问题尚无一致意见，作者较详细地研究了磷对Ｆｅ４６％Ｃ合金组织和结构的影响。结果表明，随着磷含量的提高，石墨的尺寸增大，共晶团尺寸缩小。并从热力学角度分析了磷含量和温度对碳的活性影响。
In view of the fact that there is no unanimous opinion on the effect of phosphorus on graphitization, the author studied in more detail the effect of phosphorus on the microstructure and structure of Fe46% C alloy. The results show that with the increase of phosphorus content, the size of graphite increases and the size of eutectic decreases. And from the thermodynamic point of view of the phosphorus content and temperature on the carbon activity. In view of the fact that there is no unanimous opinion on the effect of phosphorus on graphitization, the author studied in more detail the effect of phosphorus on the microstructure and structure of Fe46% C alloy. The results show that with the increase of phosphorus content, the size of graphite increases and the size of eutectic decreases. And from the thermodynamic point of view of the phosphorus content and temperature on the carbon activity.