论文标题
组成分级Al电线的多功能性能
Multifunctional properties of composition graded Al wires
论文作者
论文摘要
已经研究了成分分级ALMGSI电线的潜力，以优化电导率和扭转强度的组合。通过与Almgsi合金共同绘制商业上的纯Al，然后进行扩散退火，从而获得了组成分级。得益于纳米注册测量值，评估了扩散梯度和对降水处理的局部硬化反应。通过透射电子显微镜表征了带有纳米沉淀的空间梯度的微观结构。最后，结果表明，与基于经典混合物的预测相比，这种分级结构在扭转中的电导率和机械强度的组合提高。
The potentiality of composition graded AlMgSi wires for optimized combination of electrical conductivity and torsion strength has been investigated. Composition graded wires were obtained by co-drawing commercially pure Al with an AlMgSi alloy followed by diffusion annealing. Diffusion gradients and local hardening response to precipitation treatments were evaluated thanks to nano-indentation measurements. Resulting microstructures with spatial gradients of nanoscaled precipitates were characterized by transmission electron microscopy. Finally, it is shown that such graded structures give rise to an improved combination of electrical conductivity and mechanical strength in torsion as compared to the predictions based on a classical rule of mixture.
