激光定向能量沉积<strong>17-4PH</strong>不锈钢钝化与点蚀行为研究

激光定向能量沉积17-4PH不锈钢钝化与点蚀行为研究

谷清宇, 宋雁飞, 张亮亮, 王楠, 雷晓维

Passivation and Pitting Corrosion Behavior of Laser Directed Energy Deposited 17-4PH Stainless Steel

GU Qingyu, SONG Yanfei, ZHANG Liangliang, WANG Nan, LEI Xiaowei

图8 17-4PH不锈钢在6%FeCl₃溶液中浸泡8 h后的点蚀形貌

Fig.8 Pitting morphologies of 17-4PH stainless steel after immersion corrosion in 6%FeCl₃ solution for 8 h: (a, b) extruded sample, (c, d) 2#DED sample