THE ELASTIC STABILIZATION OF MULTIPLE-HEIGHT GROWTH LEDGES DURING DIFFUSIONAL PHASE-TRANSFORMATIONS

被引：7
|
作者：
KAMAT, SV [1 ]
HIRTH, JP [1 ]
机构：
[1] WASHINGTON STATE UNIV, DEPT MECH & MAT ENGN, PULLMAN, WA 99164 USA
来源：
ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 11期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0956-7151(94)90442-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In diffusional phase transformations that proceed by the terrace-ledge-kink mechanism, both atomic-scale, unit-height ledges and multiple-height ledges are observed. Both types of ledges also have dislocation character, thereby making them disconnections. The dislocation interaction is shown to provide a strong stabilizing force for the multiple ledges and to lead to a capture distance for additional unit ledges that increases with ledge height. Implications for the mechanism of phase transformation are discussed.
引用
收藏
页码：3767 / 3772
页数：6
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