Optimization of heat treatment in aspect of production's costs reducing and improving of casting quality from duplex cast steel

• Autorzy: Dyja, D. , Stradomski, Z.
• Języki publikacji: EN

Abstrakty

EN

The paper determines possibilities of cost optimisation in the production of GX2CrNiMoCu25-6-3-3 type duplex cast steel castings through selection of appropriate solution heat treatment temperature, which value depends on the content of alloying elements. Metallographic analysis was carried out for as-cast and heat treated cast steel. Hardness and impact strength of the cast steel were determined, which were correlated with the volume fraction of phases determined by means of ImagePro computer image analyser. It has been shown that increased carbon content creates a need to use higher treatment temperatures, thereby increasing the production cost. With increasing carbon content the cast steel hardness after solution heat treatment increases, however, crack resistance decreases.

Słowa kluczowe

PL

obróbka cieplna; staliwo typu duplex; właściwości mechaniczne; ferryt; austenit

EN

heat treatment; duplex cast steel; mechanical properties; ferrite - [delta]; austenite; volume fraction

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2007
• Tom: Vol. 7, iss. 3
• Strony: 39-42
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Dyja, D.

autor

Stradomski, Z.

• Czestochowa University of Technology, Faculty of Materials Processing Technology and Applied Physics, Armii Krajowej 19, 42-200 Częstochowa,

Bibliografia

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