Microscopic description of the kinetics of a martensitic transition in real crystals: bcc-hcp transition in Zr

被引：16
|
作者：
Gornostyrev, YN [1 ]
Katsnel'son, MI
Kuznetsov, AR
Trefilov, AV
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620219, Russia
[2] Russian Sci Ctr, Kurchatov Inst, Moscow 123182, Russia
来源：
JETP LETTERS | 1999年 / 70卷 / 06期
关键词：
D O I：
10.1134/1.568184
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The kinetics of the bcc-hcp transition in Zr in the presence of dislocations is investigated by numerical simulation methods. It is shown that the transition occurs in a nondiffusional (at a velocity of the order of the speed of sound) in two stages: relatively long development of instability of long-wavelength acoustic phonons and a fast stage of instability of short-wavelength phonons. The elastic stresses near a dislocation make it possible for these instabilities to develop at much lower temperatures than in an ideal crystal. (C) 1999 American Institute of Physics. [S0021-3640(99)00318-7].
引用
收藏
页码：380 / 384
页数：5
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