INFLUENCE OF THE GRAIN-BOUNDARY CHEMISTRY ON THE EXTRINSIC DISLOCATION ACCOMMODATION IN IRON

被引：3
|
作者：
ELMRABAT, B
PRIESTER, L
机构：
[1] Laboratoire de Metallurgie Structurale, Unité associé au CNRS 1107, Universite Paris Sud
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1990年 / 125卷 / 01期
关键词：
D O I：
10.1016/0921-5093(90)90249-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Extrinsic dislocations are the non-equilibrium linear defects of grain boundaries; their role in the grain boudary properties is somewhat similar to that of dislocations in crystal properties. The main purpose of this study is to investigate the influence of the grain boundary purity on the occurrence and the accommodation of extrinsic dislocations in iron. Phosphorus is more able than carbon to enhance the extrinsic dislocation stability. Furthermore, while carbon seems to affect all grain boundaries alike, the phosphorus influence depends on the grain boundary structure. © 1990.
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页码：31 / 38
页数：8
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