摘要
通过熔渗实验研究了铈与铅在钢中的作用机理。OM、EPMA和XRD分析表明,Ce与Pb在钢中有较强的化学亲和力,易形成CePb和Ce5Pb3高熔点金属间化合物,从而改善和消除杂质元素铅对钢性能的危害;采用Miedema模型计算Ce-Pb固态合金的生成焓,从热力学上证明了实验分析的结果。
The interaction between cerium and lead in steel was studied by infiltrating experiment.The OM,SEM,XRD,EPMA analysis shows that a strong chemical affinity exists between cerium and lead,and they produce the high melting point iner-metallics CePb and Ce5Pb3,which can improve and eliminate the damage of impurity on the steel properties.This result is confirmed by calculation of Ce-Pb formation enthalpy using Miedema model.
出处
《热加工工艺》
CSCD
北大核心
2011年第18期15-17,共3页
Hot Working Technology
基金
国家自然科学基金资助项目(50474094)
