Multiphase Ausformed Austempered Ductile Iron

• Autorzy: Soliman M. , Palkowski H. , Nofal A.

Identyfikatory

DOI

10.1515/amm-2017-0231

• Języki publikacji: EN

Abstrakty

EN

Ductile iron was subjected to a total true strain (φ_t) of 0.3 either by applying φ_t in the austenite region or by apportioning it through applying a true strain of 0.2 in the austenite region before quenching to austempering temperature (T_A) of 375°C, where a true strain of 0.1 is applied (ausforming). Additionally, two types of matrices were produced in the ductile iron, namely ausferritic and ferritic-ausferritic matrices. The ferrite is introduced to the matrix by intercritical annealing after austenitization. Dilatometric measurements as well as microstructure examination showed a fast ausferrite transformation directly after applying φ_A and that the introduction of ferrite to the matrix resulted in a remarkable acceleration of the ausferrite formation. The transformation kinetics, microstructure evolution, hardness and compression properties are studied.

Słowa kluczowe

EN

ductile iron; thermo-mechanical processing; dual matrix; austempering; ausforming; intercritical annealing

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 3
• Strony: 1493--1498
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Soliman M.

• Institute of Metallurgy, Clausthal University of Technology, D38678 Clausthal-Zellerfeld, Germany

autor

Palkowski H.

• Institute of Metallurgy, Clausthal University of Technology, D38678 Clausthal-Zellerfeld, Germany

autor

Nofal A.

• Central Metallurgical Research and Development Institute–Cmrdi, Helwan, 11421 Cairo, Egypt

Bibliografia

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Uwagi

PL

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