摘要
研究了V和Nb微合金化耐火钢显微组织和力学性能。结果表明,Mo、V、Nb元素的复合添加可以提高耐火钢的屈服强度、抗拉强度和伸长率。同时耐火钢的耐火性能和抗震性能得到提高,这与实验钢中析出的第二相V(C,N)和(Nb,V)(C,N)有关。
The microstructures and mechanical properties of the fire-resistance steel after alloying with V and Nb were investigated. The results show that the yield strength, tensile strength and elongation of the fire-resistance steel are improved by adding the element Mo, V and Nb simultaneously. And the fire resistance and seismic performance of the steel are also enhanced, which is related to the precipitated second phases V（C,N） and（Nb,V）（C,N） in the steel.
出处
《铸造技术》
CAS
北大核心
2015年第6期1376-1379,共4页
Foundry Technology
关键词
钢筋
耐火
组织
性能
reinforced
fire resistance
microstructure
performance
