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2 17-4PH不锈钢DED样品和挤压件的SEM图像

Fig.2 SEM images of 17-4PH stainless steel DED and extruded samples: (a, b) 2#DED; (c, d) extruded