钽基合金抗高温氧化研究进展

摘要

Ta-based alloys offer great potential as important materials of construction in space field due to their high melting points and excellent general mechanical properties.But,the biggest problem to restrain their application is their poor oxidation resistance at elevated temperatures.This paper reviews the current oxidation resistant protection technologies of Ta-based alloys in the following aspects:alloying effect,grain refinement and coating techniques.And it analyzes the existing problems in the current research.%钽基合金由于高熔点和良好的高温强度成为航天航空领域高温结构零件的重要候选材料之一，但抗高温氧化性能差是制约其应用的关键问题。该文从合金化、晶粒细化和高温涂层3个方面综述了钽基合金抗高温氧化的防护方法，并分析了目前研究中面临的问题。