摘要
本文研究了Ｍｏ、Ｃｒ、Ｎｂ、Ｓｉ、Ａｌ等元素对奥氏体球铁（２０％Ｎｉ）高温机械性能和抗氧化性的影响，认为Ｍｏ、Ｃｒ、Ｎｂ均提高了高温机械性能和抗变形能力。Ａｌ可提高抗氧化性，但大大降低高温热强性，恶化铸造性能。
The effect of Mo、Cr、N、Si、Al on mechanical properties at high temperture and on resistance to oxidation of austenitic heat resistant nodular cast iron(20%Ni)was studied.The author thinks that Mo、Cr、Nb give the cast iron with improved mechanical Properties and resistance to deformation at high temperature.Al improve resistance tooxidation,but it decreases greatly high temperaturestrength and casting property
关键词
球墨铸铁
奥氏体球墨铸铁
强化
耐热球墨铸铁
austenitic nodular castiron,heat resistance cast iron,high temperature strength
