Analysis of effort of carbides and austenite in austenitic cast steel cooled violently

• Autorzy: Tuleja J.
• Języki publikacji: EN

Abstrakty

EN

This work presents the analysis the effort of phases which are present in the austenitic cast steel Fe-Ni-Cr-C, applied for elements of technological instrumentation for carburising furnaces. The reduced stresses [sigma]_red in the carbides and the austenitic matrix were determined in accordance with the assumed hypotheses of effort, on the basis of the structural stresses [sigma]_x [...] calculated by the finite element method for two model location cases of the carbides towards the cast steel surface. The hypotheses referred to the crack condition were applied to evaluate the elastic carbide efforts, while for the elastic-plastic austenitic matrix - the hypotheses referred to the plasticity condition were used. There were compared the reduced stresses óred determined in accordance with various hypotheses and the correctness of their applying. It was demonstrated on the basis of the executed analysis of the effort that the carbides are destroyed only when they are not entirely surrounded by the austenitic matrix.

Słowa kluczowe

EN

heat treatment; microstresses; austenitic cast steel; carbides; austenitic matrix; effort

PL

obróbka cieplna; mikronaprężenia; staliwo austenityczne; węgliki; wytężenie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1
• Strony: 205--210
• Opis fizyczny: Bibliogr. 32 poz., rys., tab.

Twórcy

autor

Tuleja J.

• Department of Engineering of Transport, Maritime University, Wały Chrobrego 1-2, 70-500 Szczecin, Poland,

Bibliografia

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