Several processing routes for the attainment of fine-grain, superplastic microstructure in UHCS are presented.Characteristics of superplasticity and deformation mechanism in UHCS are summrized.

• 提出了超高碳钢实现超塑性所需的显微组织及其实现方法,总结了超高碳钢超塑性的变形机理及其变形特点。