THE INFLUENCE OF COOLING RATE DURING ALLOY CASTING ON THE OXIDATION BEHAVIOR OF TIAL-BASED INTERMETALLICS

被引：37

作者：

GIL, A

WALLURA, E

GRUBMEIER, H

QUADAKKERS, WJ

机构：

[1] Jülich Research Centre, Institute for Materials in Energy Systems, Jülich, 52425

来源：

JOURNAL OF MATERIALS SCIENCE | 1993年 / 28卷 / 21期

关键词：

D O I：

10.1007/BF00365194

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation behaviour of the intermetallic phase Ti-50 at % Al at 900-degrees-C was studied. It was found that the oxidation behaviour strongly depends on the composition and distribution of the gamma and alpha2-phases in the alloy microstructure. As this microstructure strongly depends on the alloy cooling rate, the oxidation behaviour of TiAl-based intermetallics is significantly affected by the casting procedure and subsequent heat treatment. Rapid cooling from high temperature ( T greater-than-or-equal-to 1400-degrees-C) has a beneficial effect on oxidation behaviour.

引用

页码：5869 / 5874

页数：6

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