搅拌头转速对2507双相不锈钢搅拌摩擦加工组织及性能的影响

陈果, 王新波, 张仁晓, 马成悦, 杨海峰, 周利, 赵运强

Effect of Tool Rotation Speed on Microstructure and Properties of Friction Stir Processed 2507 Duplex Stainless Steel

CHEN Guo, WANG Xinbo, ZHANG Renxiao, MA Chengyue, YANG Haifeng, ZHOU Li, ZHAO Yunqiang

表2 不同搅拌头转速下搅拌区表面极化曲线特征值提取

Table 2 Extraction of characteristic values of surface polarization curve of stir zone at different tool rotation speeds

Sample Ecorr / V icorr / (10-7 A·cm-2) ipass / (10-5 A·cm-2) Epit / V BM -0.59 8.26 1.94 1.09 200 r·min-1 -0.73 4.45 1.04 1.12 300 r·min-1 -0.40 5.60 0.97 1.11 400 r·min-1 -0.53 2.72 0.68 1.18 500 r·min-1 -0.55 1.93 0.93 1.20 600 r·min-1 -0.60 2.95 1.08 1.21