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一、前言 Fe-Co-Mo系合金在30年代初作为永磁材料曾经进行过研究、钼含量为15～18％的Fe-Co-Mo合金最佳磁性能达到矫顽力H_c=3500e,剩余磁感Br为7500G,然后在30年代初期Fe-Ni-A1系合金和稍后Fe-Ni-Co系合金的发展,其性能远超过Fe-Co-Mo系合金,因而使Fe-Co-Mo系合金作为永磁材料而未得到广泛应用。近十多年来,由于电气及电子工业的发展,在磁性材料中形成了一个新的领域,即半硬磁材料。它广泛用于磁滞电机的转子
I. Introduction Fe-Co-Mo alloys have been studied as permanent magnetic materials in the early 1930s. The optimum magnetic properties of Fe-Co-Mo alloys with 15-18% molybdenum content are H_c = 3500e, residual The magnetic induction Br of 7500G, and then in the early 1930s the development of Fe-Ni-Al-based alloys and later Fe-Ni-Co-based alloys far exceeded the performance of Fe-Co-Mo based alloys, Department of alloys as a permanent magnet material has not been widely used. In the past decade or so, due to the development of the electrical and electronic industries, a new field of magnetic materials has been formed, namely, semi-hard magnetic materials. It is widely used in hysteresis motor rotor