The challenges of the 21st century require developing new materials combining attributes such as low cost, high strength and toughness, machinability, and recyclability. This is particularly true for alloys that are produced in mass, such as cast irons. Solution-strengthened ferritic ductile iron (SS-FDI) is a promising candidate to become a strategic material that summarizes the abovementioned attributes. The microstructure and static strength at room and low temperature (–25°C) of a 3.45 wt.% Si SS-FDI were investigated. The results showed that the analyzed cast iron is a promising material that, compared to traditional cast iron grades, shows a unique favorable combination of high strength and elongation at rupture.

21 世纪的挑战需要开发兼具低成本、高强度和韧性、可加工性和可回收性等特性的新材料。对于大量生产的合金（例如铸铁）尤其如此。固溶强化铁素体球墨铸铁（SS-FDI）是总结上述属性的有希望成为战略材料的候选材料。研究了 3.45 wt.% Si SS-FDI 在室温和低温 (–25°C) 下的微观结构和静态强度。结果表明，所分析的铸铁是一种很有前途的材料，与传统铸铁牌号相比，它显示出高强度和断裂伸长率的独特有利组合。