激光熔覆高强韧铁基涂层精细组织调控与性能研究

冯凯, 郭彦兵, 冯育磊, 姚成武, 朱彦彦, 张群莉, 李铸国

Microstructure Controlling and Properties of Laser Cladded High Strength and High Toughness Fe-Based Coatings

FENG Kai, GUO Yanbing, FENG Yulei, YAO Chengwu, ZHU Yanyan, ZHANG Qunli, LI Zhuguo

表2 熔覆层中不同区域非晶相含量与晶体相的晶粒尺寸[76]

Table 2 Amorphous fraction and grain size in different regions of the coating[76]

Distance to fusion line / mm Phases composition Amorphous percentage / % Grain size / nm 0.570 Fe2B, FeCo 76.8 ~19.9 0.503 Amorphous, NbC 96.2 29.9-32.0 0.327 Amorphous, NbC 95.7 29.5-31.0 0.015 FeCo 11.9 ~6.4 Substrate Fe 0 ~22.6