Steel bonded cemented carbide contains a lot of steel matrix, so it has heat treatment and machinability. Steel bonded cemented carbide first appeared in the United States. 1955, Goertzel et al. developed high-speed steel combined with TiC-based alloy. At the same time, American chromium company prepared steel-bonded cemented carbide by impregnation method and liquid phase sintering method, and put it on the market with Ferro% 26mdashTic as a trademark. It developed slowly in the 1970s, until the mid-1980s, when steel-bonded cemented carbide became active again. China began to develop TiC-based steel-bonded cemented carbide in the early 1960s and WC-based steel-bonded cemented carbide in the 1970s. In the 1970s, the former Soviet Union, the United States, Japan, the former Federal Republic of Germany, the Netherlands and other countries continued to research and develop new steel-bonded cemented carbide products. The hard phase of steel-bonded cemented carbide is developing towards diversification. Besides TiC, many new hard phases have been developed, such as WC, TiN, TiCN and wC% 26mdashCo. The steel types of steel bonded cemented carbide bonding phase are constantly expanding, such as carbon steel, alloy steel, tool steel, high-speed steel, high-manganese steel, heat-resistant steel and stainless steel.

The composition range of steel-bonded cemented carbide is constantly expanding. In the past, the content of steel matrix in the alloy was generally 50% ~ 75% (mass fraction), which extended to both ends and one end to the cemented carbide field, increasing the content of hard phase to 92%. The other end extends to the field of high-speed steel, increasing the content of steel matrix, up to 90%. It can be seen that the boundary between steel-bonded cemented carbide and ordinary cemented carbide and high-speed steel is gradually disappearing, and Russia has renamed steel-bonded cemented carbide as% 26ldquo carbide steel; . Due to the excellent comprehensive properties of steel bonded cemented carbide, its application scope is expanding continuously. By choosing different steel grades and components as binders, alloys with specific properties can be prepared to meet the requirements of various application fields.