铌钒氦微合金钢中碳氮化合物研究Study on carbonitride in Nb-V-N micro-alloyed steel
刘文庆,刘庆冬,李聪,方淑芳,周邦新
摘要(Abstract):
将铌钒氮微合金钢进行热轧和空冷处理,透射电镜发现铁素体中弥散着细小的球形析出相,三维原子探针分析显示这些析出相为Nb、V、Mo碳氮化物,进一步研究表明V、Nb、Mo原子主要依次位于碳氮化物的中心、次中心层和外层,Mn原子在基体与碳氮化物界面处偏聚。从碳氮化物的中心到外层依次主要为V的碳化物、Nb的碳氮化物、Mo的碳化物。
关键词(KeyWords): 微合金钢;碳氮化物;析出;三维原子探针
基金项目(Foundation): 上海市科委纳米专项(0552nm049)
作者(Author): 刘文庆,刘庆冬,李聪,方淑芳,周邦新
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