The relationship between grain boundary character and the intergranular oxide distribution in IN718 superalloy

被引：24

作者：

Yang, SL

Krupp, U

Christ, HJ

Trindade, VB

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

[2] Univ Siegen, Inst Werkstofftech, D-57068 Siegen, Germany

来源：

ADVANCED ENGINEERING MATERIALS | 2005年 / 7卷 / 08期

关键词：

D O I：

10.1002/adem.200500036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The polycrystalline Ni-based superalloy IN718 was oxidized at 900°C in air. Ni-based superalloys are generally used as engineering materials for high-temperature applications. The surface was removed and a careful metallographic inspection was carried out in order to reveal the dependence of intergranular distribution on grain boundary character determined by ESBD technique. The extent of intergranular oxidation depends on the character of the grain boundary prompting the concept of grain boundary engineering (GBE) as a valuable means of improving the oxidation resistance.

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页码：723 / 726

页数：4

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