低温高韧性球墨铸铁特点及韧性控制因素

Characteristics and Toughness Control Factors for S.G.Cast Iron with High Toughness in Lower Temperature

低温高韧性球墨铸铁的需求日益增长,然而其生产技术及质量控制有较大难度。本文主要内容:低温高韧性球墨铸铁的性能特点及相关标准,低温断裂的特征及其表征方法,组织及主要成分对其冲击性能的影响规律等。

Characteristics and relating standards for lower temperature S.G.cast iron with high toughness;characteristics and corresponding expression;microstructure and main composition as well as influencing factors for impact properties of such iron have been introduced.