超细晶超高碳钢研究现状及展望

超细晶超高碳钢是国外近年来发展起来的一类新型的、并具有重要发展前景的高性能钢铁材料.在系统总结大量文献资料的基础上,综述国内外近年来超细晶超高碳钢的研究进展,包括制备工艺,微观组织及其影响因素,室温力学性能,超塑性,层状超高碳钢复合材料等,指出今后超细晶超高碳钢研究的发展方向.

Study Status and Prospect of Ultra-fine Grained Ultrahigh-Carbon Steels

Ultrahigh-carbon steels (UHCSs) with the microstructure of ultra-fine spheroidized carbides distributed in the ultrafine ferrite grains was a new kind of material which was developed in recent years at abroad. These steels posess unique properties that are unavailable in other materials, which makes them have important potential structural applications in the later. Recent development of the UHCSs, which include the fabrication techniques, the influence factors and characteristics of the microstructure, the ambient mechanical properties, the superplasticity and the laminated composite of this new material were systematically summarized. In the end, the future research directions on UHCSs had also been pointed out.