Eutectoid Reaction Ar1 of Cast Iron GJS-400-15 in Isothermal Conditions

• Autorzy: Szykowny T. , Romanowski Ł. , Giętka T.
• Języki publikacji: EN

Abstrakty

EN

This scientific paper presents the research on influence of austenitizing temperature on kinetics and evolution of the spheroidal plain cast iron during eutectoid reaction in isothermal conditions. The cast iron has been austenitized in temperatures of 900, 960 or 1020°C. Therewere two temperature values of isothermal holding taken into consideration: 760 or 820°C. The order of creation of reaction products and their morphology have been analyzed. The particular attention has been paid to the initial stage of transformation. The qualitative research has been executed using the transmission electron microscope (TEM), as well as quantitative research (LM). The influence of austenitizing temperature has also been determined on transformation kinetics and structural composition. It was found that the increase of austenitizing temperature is conductive to the initial release of structures by metastable system. A reduction of time was observed of the initial stage of transformation at temperature close to Ar12 with its simultaneous elongation at temperature close to Ar11, with an increase of austenitizing temperature. The dependences obtained by the metallographic method confirm the prior results of dilatometric research of eutectoid reaction.

Słowa kluczowe

EN

heat treatment; spheroidal cast iron; eutectoid reaction; austenitizing temperature; kinetics of eutectoid reaction

PL

obróbka cieplna; żeliwo sferoidalne; reakcja eutektoidalna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 3
• Strony: 93--98
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Szykowny T.

• Department of Materials Science and Engineering, Mechanical Engineering Faculty, University of Technology and Life Sciences, Prof. S. Kaliski 7, 85-796 Bydgoszcz, Poland

autor

Romanowski Ł.

• Department of Materials Science and Engineering, Mechanical Engineering Faculty, University of Technology and Life Sciences, Prof. S. Kaliski 7, 85-796 Bydgoszcz, Poland

autor

Giętka T.

• Department of Materials Science and Engineering, Mechanical Engineering Faculty, University of Technology and Life Sciences, Prof. S. Kaliski 7, 85-796 Bydgoszcz, Poland

Bibliografia

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