铌对冷硬铸铁高温组织稳定性的影响

Effect of Nb on the Structure Stability of Chilled Cast Iron at Elevated Temperature

采用高温金相显微镜研究了含铌冷硬铸铁高温的金相组织，差热分析仪测定了铌对冷硬铸铁固态相变温度的影响。结果表明，铌可以有效地提高冷硬铸铁高温组织的稳定性。

The effect of Nb on structure at elevated temperature and phase transformation temperature of chilled cast iron was studied in this paper. The results show that Nb can increase the structure stability of chilled cast iron.