Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Archives of Metallurgy and Materials

1 2017

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: micro-stresses

Sortuj według:

Ogranicz wyniki do:

Numerical Modelling of Micro-Stresses in Carbonised Austenitic Cast Steel Under Rapid Cooling Conditions

Tuleja J., Zatorski Z.

Archives of Metallurgy and Materials

2017

Vol. 62, iss. 2A

635--641

The paper presents a method of the numerical modelling of micro-stresses in carbonised austenitic cast steel being developed during rapid cooling due to differences in the values of thermal expansion coefficients for this material phases – carbides and austenitic matrix. Micro-stresses are indicated as the main cause of crack initiation in the tooling elements of carburising furnaces being mainly made of austenitic cast steel. A calculation model of carbonised and thermally fatigued austenitic cast steel was developed based on the microstructure images obtained using light microscopy techniques and the phase composition evaluated with the X-ray diffraction method. The values of the stress tensor components and the reduced stress in the complex models of test material structure were determined numerically by the finite element method. The effort analysis was performed and the areas where development of cracks is to be expected were identified, which was experimentally confirmed.