梯度结构铜铝合金的室温加工硬化行为

刘欢, 李幸福, 杨易, 李聪, 付正容, 柏云花, 张正洪, 朱心昆

Room Temperature Work-Hardenning Behavior of a Novel Sandwich Sheet of Cu-Al Alloy with Gradient Structure Surfaces on Both Sides

LIU Huan, LI Xingfu, YANG Yi, LI Cong, FU Zhengrong, BAI Yunhua, ZHANG Zhenghong, ZHU Xinkun

图3 SMAT处理前后的真应力-应变曲线对比(背景为梯度层的金相显微图)、在梯度层~30 μm深度处的TEM明场像以及拓展位错的形成-全位错分解为不全位错

Fig.3 Comparison of true stress-strain curves before and after SMAT treatment (a, metallographic image with gradient layer in the background); TEM bright field image at gradient layer ~30 μm depth (b); Extended dislocation formation-decomposition of full dislocations into partial dislocations (c)