Microstructure and properties of powder metallurgy (PM) high alloy tool steels.

• Autorzy: Wojcieszynski A.L. , Eisen W.B. , Dixon R.B.
• Konferencja: AMT'98 XVth Physical Metallurgy and Materials Science Conference 'Advanced Materials & Technologies', 17-21 May, 1998, Kraków-Krynica, Poland
• Języki publikacji: EN

Abstrakty

EN

Particle metallurgy (PM) processing is currently the primary manufacturing method used to produce advanced high alloy tool steel compositions for use in industrial tooling applications. This process involves gas atomization of the pre-alloyed melt to form spherical powders, and consolidation by HIP to full density. The HIP product may be used directly in select applications, but is usually subjected to additional forging to improve properties and produce a wide range of bar and plate sizes. Compared to ingot-cast tool steels, PM tool steels have very homogenous microstructures with very fine carbide and sulfide size distributions, free from carbide banding, which results in improved machinability, grindability, and mechanical properties. In addition, this technology enables the development of advanced tool steel compositions which could not be economically produced by conventional steelmaking.

Słowa kluczowe

EN

powder metallurgy; high-alloy steel; tool steel; microstructure; machinability; grindability; mechanical properties

PL

metalurgia proszków; stal wysokostopowa; stal narzędziowa; mikrostruktura; skrawalność; ścieralność; własności mechaniczne

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 1137--1140

Twórcy

autor

Wojcieszynski A.L.

autor

Eisen W.B.

autor

Dixon R.B.

• Crucible Research Center, Crucible Materials Corporation, Pittsburgh