烧结NdFeB永磁材料腐蚀与防护的研究现状及挑战
吴玉程1,2(), 高志强3, 徐光青4, 刘家琴5, 轩海成3, 刘友好6, 衣晓飞6, 陈静武6, 韩培德3
Current Status and Challenges in Corrosion and Protection Strategies for Sintered NdFeB Magnets
WU Yucheng1,2(), GAO Zhiqiang3, XU Guangqing4, LIU Jiaqin5, XUAN Haicheng3, LIU Youhao6, YI Xiaofei6, CHEN Jingwu6, HAN Peide3

图5. 功能梯度涂层材料结构示意图[106]

Fig.5. Schematics of functionally graded coatings[106] (a, b) discontinuous and continuous curves, respectively(c-e) schematics of discontinuous coatings that contain interfaces with gradual change in composition, grain orientation, and volume fractions of two types of second-phase particles, respectively(f-h) schematics of continuous coatings in absence of interfaces and with gradual change in grain size, fiber orientation, and volume fraction of second-phase particles, respectively