Fracture formation in austenitic cast steel during thermal fatigue

• Autorzy: Tuleja J.
• Języki publikacji: EN

Abstrakty

EN

In the paper are presented the results of numerical analyses of carburisation and thermal shock effect on fracture formation in stable austenitic cast steel of Fe-Ni-Cr-C type used in the charge-carrying elements of carburising furnaces. Using the method of finite element method, the distribution of stresses developing in carbides and their surrounding matrix were determined during rapid temperature changes. It was showed that very large tensile stresses developed in the carbides "out–coming" onto the alloy surface, regardless of the volume, type and anisotropy of properties, which could have led to their cracking as early as in the first cycles of heating and rapid cooling.

Słowa kluczowe

EN

heat treatment; fracture; microstresses; carbides; austenitic cast steel

PL

stal austenityczna; obróbka cieplna; pęknięcia; zmęczenie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 1
• Strony: 139--142
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Tuleja J.

• Akademia Morska w Szczecinie, Instytut Inżynierii Transportu, 70-500 Szczecin, Wały Chrobrego 1-2,

Bibliografia

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