Structural stability of thin-walled austempered ductile iron castings

• Autorzy: Górny Marcin , Gondek Łukasz , Angella Giuliano , Tyrała Edward , Kawalec Magdalena , Bitka Adam

Identyfikatory

DOI

10.1007/s43452-022-00597-0

• Języki publikacji: EN

Abstrakty

EN

The structural stability of ausferrite in thin-walled Austempered Ductile Iron (ADI) castings with 5 mm wall thickness is compared to a reference casting with 25 mm wall thickness. The thin-walled and reference castings were first austenitized between 850 and 925 °C, and then austempered between 250 and 380 °C. X-ray diffraction (XRD) investigations with changing temperature were performed between - 260 up to + 450 °C to investigate the change of phase fraction, lattice parameters and strain in ausferrite. The role of the austenitization temperature on structural stability and homogeneity of the investigated ADI castings has been provided. In addition, the problem of the occurrence of “blocky” high-carbon austenite that was not completely involved during austempering, has been taken into account. Finally, it has been shown that the thin-walled castings provided higher structural homogeneity and stability if compared to the reference castings.

Słowa kluczowe

EN

austempered ductile iron; ADI; thin walled casting; heat treatment; structural stability; structural homogeneity

PL

żeliwo sferoidalne austenityczne; ADI; odlew cienkościenny; obróbka cieplna; stateczność konstrukcji; jednorodność strukturalna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 2
• Strony: art. no. e79, 2023
• Opis fizyczny: Bibliogr. 33 poz., rys., tab., wykr.

Twórcy

autor

Górny Marcin

• Faculty of Foundry Engineering, Department of Cast Alloys and Composites Engineering, AGH University of Science and Technology, Reymonta St. 23, 30‑065 Krakow, Poland

• https://orcid.org/0000-0001-6682-2611

autor

Gondek Łukasz

• Faculty of Physics and Applied Computer Science, Department of Solid State Physics, AGH University of Science and Technology, Mickiewicza Av. 30, 30‑059 Krakow, Poland

• https://orcid.org/0000-0002-4149-7944

autor

Angella Giuliano

• Research Institute CNR-ICMATE, via R. Cozzi 53, 20125 Milan, Italy

• https://orcid.org/0000-0001-7632-7040

autor

Tyrała Edward

• Faculty of Foundry Engineering, Department of Cast Alloys and Composites Engineering, AGH University of Science and Technology, Reymonta St. 23, 30‑065 Krakow, Poland

• https://orcid.org/0000-0001-9288-9174

autor

Kawalec Magdalena

• Faculty of Foundry Engineering, Department of Cast Alloys and Composites Engineering, AGH University of Science and Technology, Reymonta St. 23, 30‑065 Krakow, Poland

• https://orcid.org/0000-0001-6958-1649

autor

Bitka Adam

• Łukasiewicz Research Network-Krakow Institute of Technology, Zakopiańska St. 73, 30-418 Krakow, Poland

• https://orcid.org/0000-0002-2342-5023

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