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3 DED样品和挤压件中碳化物数量和尺寸对比

Fig.3 Comparison of the numbers and sizes of carbides in DED and extruded samples: (a) 2#DED; (b) extruded; (c) comparison of carbides features