电化学渗氮对不锈钢表面结构的影响

陈真勇, 魏欣欣, 徐妍婷, 张波, 马秀良

Effect of Electrochemical Nitriding on the Surface Structure of Stainless Steel

CHEN Zhenyong, WEI Xinxin, XU Yanting, ZHANG Bo, MA Xiuliang

图4 304L不锈钢电化学渗氮前后的剖面显微图像

Fig.4 HAADF-STEM images from the cross-sectional direction showing the structural evolution induced by the electrochemical nitriding (a) HAADF-STEM image of 304L stainless steel free of nitriding showing a straight and sharp interface,(b) HAADF-STEM image showing the undulating surface induced by the electrochemical nitriding, (c) HAADF-STEM image showing some loose deposits with darker contrast cover the original smooth surface, (d) the zoom-in image corresponding to the zone labeled with the red rectangle in panel Fig.4c