抄録
Properties of high-speed tool steel produced by means of powder metallurgy technique are researched.
Compared with the ordinary melting process, the following advantages are gained:
(1) High-speed tool steels produced by powder metallurgy acquire higher and more uniform mechanical properties.
(2) A very fine-grained and uniformly distributed carbide structure is obtained.
(3) At all testing temperatures below 550°C, a comparatively higher hardness value is obtained.
