Interfacial dislocation networks strengthening a fourth-generation single-crystal TMS-138 superalloy

被引：277

作者：

Zhang, JX

Murakumo, T

Koizumi, Y

Kobayashi, T

Harada, H

Masaki, S

机构：

[1] Natl Inst Mat Sci, High Temp Mat Project 21, Ibaraki, Japan

[2] Ishikawajima Harima Heavy Ind Co Ltd, Tokyo 1888555, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2002年 / 33卷 / 12期

关键词：

D O I：

10.1007/s11661-002-0246-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The y/y' interfacial dislocation networks in several creep-ruptured superalloys were analyzed. It was found that the morphologies of dislocation networks differ slightly from each other in these alloys. The fourth-generation superalloy has finer dislocation networks and keeps a relatively stable state. Comparatively, the interfacial dislocations in the third-generation superalloy show obvious curved features associated with possible climb or slip. These interfacial dislocation characteristics can be correlated with the creep behavior of these superalloys. The mechanisms of evolution of the interfacial dislocation networks were discussed.

引用

页码：3741 / 3746

页数：6

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