【摘要】 中锰钢作为第三代先进高强钢的典型代表，凭借兼具高强度与高塑性的优异力学性能，已成为国内外材料领域研究者和工程技术人员的重点关注对象，在高端装备、汽车制造等关键领域展现出广阔应用前景。其优异的强塑性主要依赖于残余奥氏体(残奥)在变形过程中的相变诱导塑性(TRIP)效应，而宽应变范围内持续的TRIP效应取决于残奥稳定性的有效调控。从成分调控、晶粒尺寸调控和形貌调控3个方面综述了近年来中锰钢中残奥稳定性调控的研究进展，并提出了面向高性能中锰钢的残奥稳定性调控策略。研究表明，通过合理的成分设计、晶粒尺寸调控与热处理工艺优化，可精准调控残奥的成分、形貌、尺寸、体积分数及其稳定性，从而提升中锰钢综合力学性能。然而，当前研究多局限于实验室条件，面向工业化应用的残奥稳定性调控仍面临精准控制难的技术瓶颈。未来亟需在锰分布定量控制、多相组织协同调控等方面开展深入研究，推动中锰钢在高端装备制造领域的工程化应用。更多还原

【Abstract】 As a typical representative of the third-generation advanced high-strength steels, medium-manganese steel has attracted substantial attention from researchers and engineers in the materials field worldwide due to its excellent mechanical properties combining high strength and high plasticity. It shows broad application prospects in key fields such as high-end equipment manufacturing and automotive production. Its outstanding strength-plasticity synergy mainly relies on the transformation-induced plasticity(TRIP) effect of retained austenite during the deformation process, while the sustained TRIP effect over a wide strain range depends on the effective regulation of retained austenite stability. This paper reviews the recent research progress in the stability regulation of retained austenite in medium-manganese steel from three aspects: composition control, grain size control, and morphology control, and proposes stability regulation strategies for high-performance medium-manganese steel. Research results show that rational composition design, grain size adjustment, and heat treatment process optimization can precisely regulate the composition, morphology, size, volume fraction and stability of retained austenite, thereby improving the comprehensive mechanical properties of medium-manganese steel. However, current research is mostly limited to laboratory conditions, and the regulation of retained austenite stability for industrial applications still faces the technical bottleneck of precise control. In the future, it is urgent to carry out in-depth research on the quantitative control of manganese distribution and the synergistic regulation of multiphase microstructure, so as to promote the engineering application of medium-manganese steel in the field of high-end equipment manufacturing.更多还原