类高熵硬质相复合强化铁基耐磨堆焊材料研究现状  

Research Status of High-entropy(-like) Hard Phase Composite Reinforced Iron-based Wear-resistant Built-up Materials

作　　者：胡士昌 尼军杰 杨威[1] 王重阳 黄智泉 高站起 余圣甫 HU Shichang;NI Junjie;YANG Wei;WANG Chongyang;HUANG Zhiquan;GAO Zhanqi;YU Shengfu(China Machinery General Institute Group Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China;School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]中国机械总院集团郑州机械研究所有限公司,河南郑州450001 [2]华中科技大学材料科学与工程学院,湖北武汉430074

出　　处：《电焊机》2024年第11期1-8,共8页Electric Welding Machine

基　　金：河南省科技攻关计划(242102230046)。

摘　　要：铁基耐磨堆焊材料因价格低廉、性能良好而广泛应用于工业领域。然而,传统高碳高铬铁基合金耐磨性提升往往需要加入大量硬质相,这会使合金脆性增大,导致硬质相脱落影响耐磨性。为解决这一矛盾,在不提高成本的前提下,控制加入硬质相的比例,使其形成具有类高熵性质的硬质相,在增强材料耐磨性同时使合金保持一定的韧性,是一个新型的研究方向。综述了Mo、Ti、W、V、Nb等合金元素对铁基耐磨合金的影响,它们可在铁基耐磨合金中形成碳化物,并通过细化组织、改变硬质相尺寸及分布来提高材料的耐磨性。介绍了多元硬质相强化铁基耐磨堆焊材料的现状,多元强化比单一组元强化更有效。重点介绍了(类)高熵碳化物强化耐磨材料的研究现状,高熵碳化物陶瓷具有优异性能,且类高熵硬质相强化高锰钢的效果显著,为类高熵硬质相复合强化铁基耐磨堆焊材料的研究提供了一定的参考。Astract:Iron-based wear-resistant built-up materials are widely used in wear-resistant built-up materials due to their low price and good performance.However,the improvement of wear resistance in traditional high-carbon,high-chromium iron-based alloys often requires the addition of a large amount of hard phases,leading to increased brittleness of the alloy,which results in the detachment of hard phases and affects wear resistance.To resolve this contradiction,controlling the proportion of hard phases added without increasing costs,forming hard phases with high-entropy(-like) properties to enhance material wear resistance while maintaining certain toughness of the alloy,is a new research direction.This paper introduces the influence of Mo,Ti,W,V,Nb elements on iron-based wear-resistant alloys,they can form carbides in iron-based wear resistant alloys,improving the wear resistance of the material by refining the structure and changing the size and distribution of the hard phase.Subsequently,it introduces the current status of multi-hard phase reinforced iron-based wear-resistant built-up materials.Multi element reinforcement is more effective than single element reinforcement.Finally,it focuses on the research status of high-entropy(-like) carbides reinforced wear-resistant materials.High-entropy carbides ceramics have excellent properties,and high-entropy hard phases strengthening of high-manganese steel is significant.It provides a certain reference for the research of quasi-high-entropy hard phases composite reinforced ironbased wear-resistant built-up materials.

关 键 词：铁基耐磨堆焊材料 类高熵硬质相 堆焊 耐磨性 多元强化 

分 类 号：TG455[金属学及工艺—焊接]