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12 17-4PH不锈钢表面钝化膜的XPS光谱

Fig.12 XPS spectrum of the passive film on 17-4PH stainless steel's surface: (a, c) Cr 2p; (b, d) Fe 2p