Influence of variable casting wall thickness and shell mold material and its thermal properties on secondary dendrite arm spacing in IN 713C superalloy castings

• Autorzy: Szczotok A.

Identyfikatory

DOI

10.15199/28.2016.5.2

Warianty tytułu

PL

Wpływ grubości ścianki odlewu oraz składu materiału i właściwości cieplnych formy ceramicznej na odległość między ramionami wtórnymi dendrytów w odlewach z nadstopu IN 713C

• Języki publikacji: EN

Abstrakty

EN

The results of microstructure investigations of IN 713C superalloys obtained as thin walled‚ wedge’ castings from three kinds of shell molds are presented. Light microscopy, scanning electron microscopy observations and secondary dendrite arm spacing (SDAS) measurements were used to determine the differences in the IN 713C castings obtained using three kinds of shell mold materials. The effects of major constituents of the three shell molds: zirconium silicate ZrSiO4, aluminosilicate mAl2O3 . nSiO2 and SiC-based system on the SDAS in the investigated castings of the IN 713C superalloy are described. The results confirm that crystallization conditions (the variable wall thickness of the casting and material of the shell) of the IN 713C castings influence their microstructure. The increased SiC content in the shell molds has an effect on the crystallization process kinetics as indicated by the changes in the observed secondary dendrite arm spacing.

PL

Powszechnie wiadomo, że parametry procesu odlewania mogą wpływać na mikrostrukturę i właściwości mechaniczne nadstopów na osnowie niklu. Zmniejszenie odległości między ramionami wtórnymi dendrytów (SDAS) prowadzi do zredukowania porowatości i obszarów eutektyki w odlewie. Celem przeprowadzonych badań było ustalenie wpływu grubości ścianki odlewu oraz składu materiału i właściwości cieplnych formy ceramicznej na odległości między ramionami wtórnymi dendrytów w odlewach z nadstopu IN 713C.

Słowa kluczowe

EN

IN713C; superalloy; secondary dendrite arm spacing; shell mold

PL

IN713C; nadstopy; odległość między ramionami wtórnymi dendrytów; forma ceramiczna

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 2016
• Tom: Vol. 37, nr 5
• Strony: 217--222
• Opis fizyczny: Bibliogr. 32 poz., fig., tab.

Twórcy

autor

Szczotok A.

• Institut of Materials Science, Silesian University of Technology

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.