Making composite steel higher strength and higher ductility via introducing carbon diffusion strategy
Zhinan Yang, Feng Jiang, Yaomin Wang, Qingchao Wang, Mingxin Huang, Yuefeng Wang, Chen Chen, Fucheng Zhang
Abstract
Researchers have always aimed to break the trade-off relationship between strength and ductility. In this study, a carbon diffusion strategy was provided to improve the strength and ductility of composite martensite steel simultaneously, as well as increase uniform ductility by 190%. The process strengthens the martensite without losing the hardening ability of austenite constituents and brings in a substantial transition layer. This strategy can also be applied to other composite alloys with light elements, thus providing a pathway for making high-strength and high-ductility materials.
Topics & Concepts
Materials scienceDuctility (Earth science)Composite numberDiffusionCarbon fibersComposite materialMetallurgyThermodynamicsCreepPhysicsMicrostructure and Mechanical Properties of SteelsMetal Alloys Wear and PropertiesAdvanced materials and composites