【摘要】 通过铈与铅在低碳钢中的熔渗实验,利用金相显微镜、电子探针和量子力学成键理论,探讨了钢中稀土铈与低熔点金属铅的相互作用。结果表明,铈与铅聚集的区域,均有显著的氧含量,由此推出,在高温处理过程中相互作用所形成的高熔点化合物CePb在氧化介质中极不稳定。更多还原

【Abstract】 The interaction between Rare Earth cerium and metallic lead with low melting point in low-carbon steel was studied by means of closed-melting and permeating treatment, metallographic microscope, electron probe and the bond formation theory. The result shown that there was a remarkable amount of oxygen in the region assembled by both Cerium and Lead atoms, therefore, the high melting point compound CePb developed in the heat treatment by diffusion and chemical reaction can be oxidized easily in atmosphere.更多还原