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4 17-4PH不锈钢DED样品和挤压件的EBSD表征结果

Fig.4 EBSD characterization results of 17-4PH stainless steel DED and extruded samples: (a) IPF of 2#DED sample, (b) IPF of extruded sample, (c) phase distribution map of 2#DED sample, (d) phase distribution map of extruded sample