Nb-Si基合金及其涂层的高温氧化行为研究进展  

Research Progress of High Temperature Oxidation Behavior of Nb-Si Based Alloys and Their Coatings

作　　者：朱飞 胡平[1,2] 葛松伟 杨帆[1,2] 李泽林[1,2] 尹霏 白润 王快社 Zhu Fei;Hu Ping;Ge Songwei;Yang Fan;Li Zelin;Yin Fei;Bai Run;Wang Kuaishe(College of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;National-Local Joint Engineering Research Center for Functional Materials Processing,Xi’an University of Architecture and Technology,Xi’an 710055,China;Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China)

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055 [2]西安建筑科技大学功能材料加工国家地方联合工程研究中心,陕西西安710055 [3]西北有色金属研究院,陕西西安710016

出　　处：《稀有金属材料与工程》2023年第12期4340-4354,共15页Rare Metal Materials and Engineering

基　　金：陕西省创新能力支撑计划科技创新团队项目(2022TD-30);霍英东教育基金会(171101);陕西省“高层次人才特殊支持计划”青年拔尖人才项目(2018-2023);陕西高校青年创新团队(2019-2022)。

摘　　要：Nb-Si基合金被认为是替代Ni基超高温合金的理想候选材料。然而,其脆性大、高温氧化性能差等缺陷极大地限制了其发展和应用。合金化和表面抗氧化涂层可以有效地提高Nb-Si基合金的高温氧化性能和使用寿命。本文综述了Ti、Zr、Cr、B等元素和系列抗氧化涂层对Nb-Si基合金的力学和氧化性能的影响,阐述了合金的氧化失效机制,总结了合金基体和涂层的微观组织和氧化行为研究进展。最后,对Nb-Si基合金未来的研究方向和发展趋势做了建设性的建议及展望。Nb-Si based alloys are considered to be an ideal candidate to replace Ni based ultrahigh temperature alloys.However,their brittleness and inferior high temperature oxidation performance greatly restrict their development and application.Alloying and surface oxidation-resistant coating can effectively improve the high temperature oxidation properties and prolong the service life of Nb-Si based alloys.In this research,the effects of Ti,Zr,Cr,and B elements and a series of anti-oxidation coatings on the mechanical and oxidation properties of Nb-Si based alloys were reviewed.The oxidation failure mechanism of the alloy was expounded.The research progress of microstructure and oxidation behavior of alloy matrix and coating was summarized.Finally,constructive suggestions and prospects were proposed for the future research direction and development trend of Nb-Si based alloys.

关 键 词：Nb-Si基合金 涂层防护 氧化行为 微观组织 

分 类 号：TG174.4[金属学及工艺—金属表面处理]