Fe-Mn系无镍低温钢研究进展  

Research progress on Fe-Mn nickel-free cryogenic steels

作　　者：赵鑫磊 周华生 章小峰 林方敏 邢梅 杨永 ZHAO Xin-lei;ZHOU Hua-sheng;ZHANG Xiao-feng;LIN Fang-min;XING Mei;YANG Yong(School of Metallurgical Engineering,Anhui University of Technology,Maanshan 243002,China)

机构地区：[1]安徽工业大学冶金工程学院,安徽马鞍山243002

出　　处：《塑性工程学报》2024年第5期11-22,共12页Journal of Plasticity Engineering

基　　金：安徽省自然科学基金面上资助项目(2108085ME143);安徽省高校自然科学基金重大资助项目(KJ2021ZD0045)。

摘　　要：随着能源消耗和环境污染问题日益严峻,液化天然气等清洁能源得到广泛关注。低温钢作为这类能源存储和运输的材料,其应用和研发愈显迫切。Ni钢是低温结构钢的主流选择,但近年来,由于Fe-Mn系钢的经济性和性能的优良性,“以锰代镍”新型低温钢成为科研热点,该类钢通常通过添加Mn、Al和Cu等合金元素调控力学性能,并通过工艺调控达到使用标准。重点阐述了外力参数-变形对力学性能的影响、经典强化机制和变形对强韧性机制的影响;综述了裂纹萌生、溶质偏析、相间强度差和能量吸收等低温断裂的理论原理;系统归纳了韧性的评价指标和试验方法。最后,总结了Fe-Mn系低温钢的相关研究成果,对未来的研究进行了展望。As the problems of energy consumption and environmental pollution become more and more serious,clean energy such as liquefied natural gas has been widely concerned.As a material for the storage and transportation of this kind of energy,the application and research and development of cryogenic steel have become more and more urgent.Ni steel is the mainstream choice of cryogenic structural steel,but in recent years,due to the excellent economy and performance of Fe-Mn steel,“manganese instead of nickel”new cryogenic steel has become a research hotspot,the mechanical properties of this kind of steel are often regulated by adding Mn,Al and Cu alloying elements,and the use standard is reached through process regulation.The influence of external force parameters-deformation on mechanical properties,classical strengthening mechanism and the influence of deformation on strength and toughness mechanism were emphasized.The theoretical principles of low temperature crack such as crack initiation,solute segregation,phase intensity difference and energy absorption were reviewed.The evaluation indexes and test methods of toughness were systematically summarized.Finally,the relevant research results of Fe-Mn cryogenic steels were summarized,and the future research was prospected.

关 键 词：无镍低温钢 成分工艺 强韧化机制 断裂机理 

分 类 号：TG142.1[一般工业技术—材料科学与工程]