一、序言 寻找不含或少含在资源上尚稀缺的元素 Ni,Co,并具有磁性良好的合金,是最近十几年来研究强磁性材料的对象之一。尤其目前科学技术飞跃发展而对磁性材料需要量愈来愈大的情况下,研究并推广生产不含上述元素强磁性材料具有很大经济价值。 我国过去所使用的硬磁合金除了一些高碳钢,铬钢外,几乎都含有依赖于进口的稀有元素Ni,Co等。这种情况对目前我国工业大跃进而迫切需要大量硬磁材料而言,在生产及使用方面不能不受到很大限制。为了解决这个问题,我们在“七一”的前夕在党的领导与一些工厂的大力支持下,把Fe-Al-C系硬磁合金试制工作做为向党献礼的一 I. Introduction It is one of the objects to study ferromagnetic materials in recent ten years in search of Ni, Co, which contains no or few elements, which are scarce in resources. In particular, with the rapid development of science and technology and the ever-increasing demand for magnetic materials, it is of great economic value to research and popularize the production of ferromagnetic materials without the above-mentioned elements. In addition to some high-carbon steel, chromium steel, almost all of the hard magnetic alloy used in our country contains rare elements Ni, Co and other dependent on imports. In this situation, for the urgent need of a large amount of hard magnetic materials for the great leap forward of China’s economy, its production and use can not but be severely restricted. In order to solve this problem, on the eve of “1 July”, with the strong support of the party’s leadership and some factories, we have tried the Fe-Al-C hard alloy trial work as a gift to the party