铌基合金抗高温氧化研究进展  

Research Progress in High Temperature Oxidation Resistance of Nb-based Alloys

作　　者：赵陆翔[1] 郭喜平[1] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,西安710072

出　　处：《材料导报》2006年第7期61-64,共4页Materials Reports

基　　金：国家自然科学基金(50271056);国家"863"计划项目(2003AA305810);高等学校博士点基金项目(20020699025);陕西省自然科学研究项目

摘　　要：铌基合金由于其高熔点、低密度和优良的综合机械性能而可能成为替代镍基单晶高温合金的首选材料,但抗高温氧化性能差是制约其应用的关键问题。从合金化、晶粒细化和高温涂层3个方面综述了铌基合金抗高温氧化的防护,并分析了研究中面临的问题。Nb-based alloys offer great potential as important alternative materials to Ni-based alloys due to their high melting points, low densities and excellent general mechanical properties. However, their poor oxidation resistance at elevated temperatures is the key problem to restrain their application. This paper reviews the current oxidation resistant protection technologies of Nb-based alloys in the following aspects： alloying effect, grain refinement and coating techniques, and furthermore, it analyzes the existing problems in the current research.

关 键 词：铌基合金 高温氧化 合金化 晶粒细化 高温涂层 

分 类 号：TG146.416[一般工业技术—材料科学与工程] TQ174.16[金属学及工艺—金属材料]