压缩变形对渗硅钛铝基合金抗氧化性能的影响  

Effect of the compression on the oxidation resistance of the siliconized TiAl-based alloy

作　　者：张峰[1] 梁伟[1] 马晓霞[1] 赵兴国[1] 杜晋峰[1] 

机构地区：[1]太原理工大学材料科学与工程学院,030024

出　　处：《新技术新工艺》2005年第9期51-53,共3页New Technology & New Process

基　　金：国家自然科学基金资助项目(50171046)山西省自然科学基金资助项目(20021051)

摘　　要：研究了渗硅处理后的钛铝基合金分别在高温和室温压缩变形后的抗高温循环氧化性 能。试验结果表明,由Al2O3基层(厚约1 μm,其中分布少量硅化物)和Ti5Si3基层(厚约 7μm,其中分布少量Al2O3)构成的复合渗硅层,可有效保护TiAl基体的高温氧化,其优异 的抗高温氧化性能在高温压缩变形约1％后不受影响,即使较大的变形仍能保持良好的抗高 温氧化性能。说明渗硅钛铝基合金具有非常好的耐应力应变和高温氧化交互作用的性能。The cyclic oxidation resistance of the siliconized TiAl-based alloy, which was compressed at high temperature and room temperature respectively, has been studied. The results show that the excellent oxidation resistance of the siliconized alloy is not affected by the compression of about 1% at high temperature, and the good performance can also be retained even after compression with higher strains. These demonstrate that the siliconized TiAl-based alloy has the excellent properties of resisting the interaction of stress-strain and hightemperature oxidation.

关 键 词：钛铝基合金 渗硅形变 氧化 

分 类 号：TG146.23[一般工业技术—材料科学与工程]