MODELLING OF BREAKUP OF Cr FILAMENTS IN WIRE-DRAWN Cu-BASED IN SITU COMPOSITES
来源期刊：中国有色金属学报(英文版)1999年第2期
论文作者：Ge Jiping
文章页码：223 - 229
Key words：Cu-based in situ composite, Cr filament ,breakup kinetics, modelling
Abstract: The breakup kinetics of Cr filaments in Cu-3%Ag-10%Cr (mass fraction) wire drawn in situ composites (η=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 coeffcient was found to beDI(Cr in Cu(Ag)-Cr interface)=47.4exp(-137 000/RT) cm2/s between 600 and 950℃by Courtney’s boundary splitting model,Rin J/(mol·K).
