纳秒激光辐照对17-4PH不锈钢电化学腐蚀行为的影响

李萍, 时慧杰, 裴继斌, 王子健, 曹铁山, 程从前, 赵杰

Impact of Nanosecond Pulsed Laser Irradiation on Electrochemical Corrosion Behavior of 17-4PH Stainless Steel

LI Ping, SHI Huijie, PEI Jibin, WANG Zijian, CAO Tieshan, CHENG Congqian, ZHAO Jie

表2 正交试验结果及极差分析

Table 2 Orthogonal test results and range analysis

Experimental number A (power / W) B (pulse width / ns) C (overlap rate / %) Pitting potential, E / V L1 120 30 65 0.232 L2 120 120 70 0.394 L3 120 240 75 0.341 L4 130 30 75 0.271 L5 130 120 70 0.345 L6 130 240 65 0.321 L7 140 30 70 0.318 L8 140 120 65 0.247 L9 140 240 75 0.255 k1 (E) 0.322 0.274 0.267 k2 (E) 0.312 0.329 0.352 k3 (E) 0.273 0.306 0.289 R (E) 0.049 0.055 0.086 Factor ranking R(E): C > B > A Optimal solution Pitting potential: A1B2C2