The influence of plastic deformation on polytypic phase transformations in TiCr2 Laves phases

被引：2
|
作者：
Baumann, Wolfgang [1 ]
Leineweber, Andreas [1 ]
Mittemeijer, Eric Jan [1 ,2 ]
机构：
[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany
[2] Univ Stuttgart, Inst Mat Sci, D-70569 Stuttgart, Germany
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 11期
关键词：
Cold working; Differential thermal analysis; Intermetallic compounds; Phase-transformation kinetics; MODELS;
D O I：
10.1016/j.scriptamat.2010.07.020
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The kinetics of the polymorphic C36 reversible arrow C14 Laves phase transformation of TiCr2 close to the equilibrium transformation temperature of about 1550 K was investigated by differential thermal analysis. Plastic deformation-induced by compression has a considerable affect on the transformation kinetics. This is ascribed to the presence of synchro(-Shockley partial) dislocations introduced during compression. The transformation kinetics are shown to vary with the degree of plastic deformation, i.e. with the dislocation density as characterised by the extent of (X-ray) diffraction line broadening. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1041 / 1044
页数：4
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