稀土在金属增材制造中的应用  

Research Progress of Effects of Rare Earth Elements on Metal Additive Manufacturing

作　　者：李一鸣[1,2,3] 计云萍[1,3] 康学良[1,2] 任慧平[2,3] Li Yiming;Ji Yunping;Kang Xueliang;Ren Huiping(School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010,China;Key Laboratory of Advanced Metals and Materials of Inner Mongolia,Inner Mongolia University of Science and Technology,Baotou 014010,China;Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi-Metal Resources,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学材料与冶金学院(稀土学院),内蒙古包头014010 [2]内蒙古科技大学内蒙古自治区新金属材料重点实验室,内蒙古包头014010 [3]内蒙古科技大学白云鄂博共伴生矿资源高效综合利用省部共建协同创新中心,内蒙古包头014010

出　　处：《稀有金属材料与工程》2022年第9期3510-3523,共14页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51761034);内蒙古自然科学基金(2021MS05010)。

摘　　要：增材制造为复杂结构金属材料制备及其组织、性能调控提供了全新的可能。在原材料中添加稀土是改善金属增材制造显微组织和性能的可行方法。本文总结了近期关于稀土在金属增材制造的研究工作,在简要介绍增材制造工艺及组织特征的基础上,着重对稀土在其中的作用进行了综述。同时讨论了目前稀土在金属增材制造应用中需要明确的几个关键基础问题。合理的稀土添加及对应的工艺调整,除了能够优化增材制造金属材料的显微组织和性能,还可能进一步拓展增材制造可加工材料体系的范围。Additive manufacturing(AM) has been wildly used for processing of metallic components with complex structure by vast alternations in microstructure and performances.Addition of rare earth elements(RE) is a potential route for improvement of the microstructure and properties in AM.Recent development of appl ications of RE in metal AM was reviewed in this paper.Based on a brief introduction of AM and basic understanding of the related microstructure,this review emphasizes the fundamentals of RE in the formation of melting pool and microstructure of the AM samples.Several key issues of application of RE in AM were also discussed.It is concluded that proper RE addition and related processing parameter optimization can improve the microstructure and properties of AM metals and expand the metallic system available for AM as well.

关 键 词：金属增材制造 稀土 冶金缺陷 晶粒细化 

分 类 号：TG669[金属学及工艺—金属切削加工及机床]