DISSOLUTION OF PRECIPITATES BY MIGRATING GRAIN-BOUNDARIES

被引：14

作者：

BOUCHAUD, E ^{[1
]}

BOUCHAUD, JP ^{[1
]}

NAKA, S ^{[1
]}

LAPASSET, G ^{[1
]}

OCTOR, H ^{[1
]}

机构：

[1] ECOLE NORM SUPER, PHYS STAT LAB, F-75231 PARIS 05, FRANCE

来源：

ACTA METALLURGICA ET MATERIALIA | 1992年 / 40卷 / 12期

关键词：

Dissolution - Grain boundaries - Interfaces (materials) - Precipitation (chemical) - Recrystallization (metallurgy) - Solid solutions;

D O I：

10.1016/0956-7151(92)90059-N

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss a new effect observed in a Ti-Y-O alloy. During recrystallisation, migrating grain boundaries dissolve small yttria precipitates. We present a theoretical model which describes this phenomenon. The interaction between the moving interface and the precipitates is due to the attraction of solid solution atoms by the wall. We argue that in the case of our experiment, this attractive force must be long ranged.

引用

页码：3451 / 3458

页数：8

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