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9 17-4PH不锈钢点蚀萌生部位的SEM形貌和EDS面扫描分析

Fig.9 SEM morphologies and EDS mapping of pitting initiation sites of 17-4PH stainless steel: (a) extruded sample, (b) 2#DED sample