Microstructure of Haynes® 282® Superalloy after Vacuum Induction Melting and Investment Casting of Thin-Walled Components

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Matysiak, HubertWarsaw University of Technology, Functional Materials Research Center,Politechnika Warszawska (author)

Microstructure of Haynes® 282® Superalloy after Vacuum Induction Melting and Investment Casting of Thin-Walled Components

Article/chapterEnglish2013

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2013-11-01
MDPI AG,2013
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LIBRIS-ID:oai:DiVA.org:hv-5699
https://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5699URI
https://doi.org/10.3390/ma6115016DOI
https://research.chalmers.se/publication/190003URI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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The aim of this work was to characterize the microstructure of the as-cast Haynes® 282® alloy. Observations and analyses were carried out using techniques such as X-ray diffraction (XRD), light microscopy (LM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray spectroscopy (EDS), wave length dispersive X-ray spectroscopy (WDS), auger electron spectroscopy (AES) and electron energy-loss spectrometry (EELS). The phases identified in the as-cast alloy include: γ (gamma matrix), γʹ (matrix strengthening phase), (TiMoCr)C (primary carbide), TiN (primary nitride), σ (sigma-TCP phase), (TiMo)2SC (carbosulphide) and a lamellar constituent consisting of molybdenum and chromium rich secondary carbide phase together with γ phase. Within the dendrites the γʹ appears mostly in the form of spherical, nanometric precipitates (74 nm), while coarser (113 nm) cubic γʹ precipitates are present in the interdendritic areas. Volume fraction content of the γʹ precipitates in the dendrites and interdendritic areas are 9.6% and 8.5%, respectively. Primary nitrides metallic nitrides (MN), are homogeneously dispersed in the as-cast microstructure, while primary carbides metallic carbides (MC), preferentially precipitate in interdendritic areas. Such preference is also observed in the case of globular σ phase. Lamellar constituents characterized as secondary carbides/γ phases were together with (TiMo)2SC phase always observed adjacent to σ phase precipitates. Crystallographic relations were established in-between the MC, σ, secondary carbides and γ/γʹ matrix.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Materialteknik Bearbetnings-, yt- och fogningsteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Manufacturing, Surface and Joining Technology hsv//eng
TEKNIK OCH TEKNOLOGIER Materialteknik Annan materialteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Other Materials Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
Haynes® 282®
vacuum induction melting
investment casting
superalloy
microstructure. Work-integrated learning
WIL
AIL
Produktions- och materialteknik
Manufacturing and materials engineering
Arbetsintegrerat lärande
Work Integrated Learning

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Zagorska, MalgorzataWarsaw University of Technology, Faculty of Materials Science and Engineering,Politechnika Warszawska (author)
Andersson, Joel,1981-Högskolan Väst,Avd för maskinteknik,PTW,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)hakaand (author)
Balkowiec, AlicjaWarsaw University of Technology, Faculty of Materials Science and Engineering,Politechnika Warszawska (author)
Cygan, RafalWytwornia Sprzetu Komunikacyjnego, "Polskie Zaklady Lotnicze Rzeszow",Polskie Zaklady Lotnicze Rzeszow S.A. (author)
Rasinski, MarcinWarsaw University of Technology, Faculty of Materials Science and Engineering,Politechnika Warszawska (author)
Pisarek, MarcinPolish Academy of Sciences, Institute of Physical Chemistry (author)
Andrzejczuk, MariuszWarsaw University of Technology, Faculty of Materials Science and Engineering,Politechnika Warszawska (author)
Kubiak, KrzysztofRzeszow University of Technology, Faculty of Mechanical Engineering and Aeronautics,Politechnika Rzeszowska,Rzeszów University of Technology (author)
Kurzydlowski, Krzysztof J.Warsaw University of Technology, Faculty of Materials Science and Engineering,Politechnika Warszawska (author)
Warsaw University of Technology, Functional Materials Research CenterPolitechnika Warszawska (creator_code:org_t)

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In:Materials: MDPI AG6:11, s. 5016-50371996-1944

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