超声喷丸对7075铝合金棒材组织结构与性能的影响

刘浩, 郭晓开, 王维, 伍廉奎, 曹发和, 孙擎擎

Effect of Ultrasonic Shot Peening on Microstructure and Properties of a 7075 Al-alloy Rod

LIU Hao, GUO Xiaokai, WANG Wei, WU Liankui, CAO Fahe, SUN Qingqing

表2 7075铝合金棒材未处理样和喷丸样在3.5%NaCl溶液中极化曲线的参数

Table 2 Electrochemical parameters of the untreated and peen-ed 7075 Al-alloy (with surface being polished off 0, 50, 100 μm) in 3.5%NaCl solution

Sample Ecorr / V Icorr / 10-6 A·cm-2 USSP_0 μm -0.75 3.83 USSP_50 μm -0.71 2.36 USSP_100 μm -0.70 1.72 Untreated -0.68 0.97