Modelling of breakup of Cr filaments in wire-drawn Cu-based in situ composites

被引：0
|
作者：
Ge, JP [1 ]
机构：
[1] Dalian Inst Railway Technol, Dept Mat Sci & Engn, Dalian 116028, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 1999年 / 9卷 / 02期
关键词：
Cu-based in situ composite; Cr filament; breakup kinetics; modelling;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The breakup kinetics of Cr filaments in Cu-3%Ag-10% Cr (mass fraction) wire drawn in situ composites (eta = 3.95) was monitored by quantitative metallography. Experimental results were compared with existing models and an appropriate physical model for breakup of filaments was provided. Breakup kinetics in this composite was consistent with interfacial diffusion, and the interfacial diffusion coefficient was found to be D-I(Cr in Cu(Ag)-Cr interface) = 47.4exp(-137 000/RT) cm(2)/s between 600 and 950 degrees C by Courtney's boundary splitting model, R in J/(mol.K).
引用
收藏
页码：223 / 229
页数：7
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