高速钢是重要的刀具材料之一。自它1898年问世以来,迄今已有80多年的历史。世界上各主要工业国家几乎均结合本国资源和生产情况建立起自己的高速钢合金体系,但到目前为止,其生产方法大多采用冶炼、铸锭、锻轧等传统工艺。采用这种方法生产的铸锻高速钢,由于铸锭冷却缓慢,往往存在碳化物偏析问题。所谓碳化物偏析就是钢中的碳化物大小相差悬殊,而且分布不均匀,如呈带状 High speed steel is one of the important tool materials. Since its publication in 1898, it has been more than 80 years old. Almost all the major industrialized countries in the world have established their own high-speed steel alloy systems based on their own resources and production. However, up to now, most of their production methods use traditional processes such as smelting, ingot casting and forging rolling. Forging high-speed steel produced by this method, due to the slow cooling ingot, there is often the problem of carbide segregation. The so-called carbide segregation is the size of steel in the difference between the great disparity, but uneven distribution, such as banded