The Influence of Lamellar Graphite Cast Iron Annealing on Hardness and Structure

• Autorzy: Roučka J. , Prochazka J. , Kana V. , Krutis V. , Nedelova K.

Identyfikatory

DOI

10.24425/afe.2019.129639

• Języki publikacji: EN

Abstrakty

EN

An analysis has been carried out of the influence of annealing time at the preheating temperature of 650 °C on the change in hardness and alloy structure of lamellar graphite cast iron in the working as well as in the laboratory conditions. This preheat temperature is common during reclaiming welding of castings with complex shapes. The changes in unalloyed cast iron EN-GJL 200 to EN-GJL 300 according to ISO 1690 standard and cast iron with low amount of elements such as Sn, Cu, Cr, and Mo and their combinations were assessed. It was found that the cast iron of higher strength grades has better hardness and structural stability. Cast iron alloyed with chromium or its combinations has the highest stability. In unalloyed cast iron, a partial degradation of pearlite occurs; in alloyed cast iron the structural changes are not conclusive.

Słowa kluczowe

EN

cast iron; welding; annealing; cast iron hardness; structure stability

PL

żeliwo; spawanie; wyżarzanie; twardość żeliwa; struktura; stabilność

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 4
• Strony: 105--112
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Roučka J.

• Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic

autor

Prochazka J.

• Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic

autor

Kana V.

• Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic

autor

Krutis V.

• Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic

autor

Nedelova K.

• Slévárna Heunisch Brno, S.R.O. Brno, Czech Republic

Bibliografia

• [1] Ryš, P., Cenek,M., Mazanec, K. (1975). Material science I/4. Praha: Akademia. (in Czech).
• [2] Gusseisen mit Lamellengraphit. (1992). Düsseldorf. BDG.
• [3] Röhrig, K., Wolters, D (1970). Legiertes Gusseisen. Düsseldorf: Giessereiverlag GmbH.
• [4] Roy, E. (1988). Cast Iron Technology. London: Butterworth.
• [5] Walton, Ch. F. (1971). Iron Castings Handbook. Cleveland. Gray and Ductile Iron Founder´s Society Inc.
• [6] ASM Handbook, (2016). 10th edition. ASM International.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)