1971•Journal of the Japan Society of Powder and Powder MetallurgyOpen access

Properties of High-speed Tool Steel Produced by Means of Powder Metallurgy (Part 1)

Tetsuro Yamaguchi, Tsutomu Shinpo, Hajime Murayama, Masayuki Iijima

Abstract

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.

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Key concepts: Powder metallurgy, High-speed steel, Materials science, Metallurgy, Carbide, Tool steel, Microstructure