Creep Behaviour of Modified Mar-247 Superalloy

• Autorzy: Cieśla M. , Mańka M. , Binczyk F. , Gradoń P.

Identyfikatory

DOI

10.1515/amm-2016-0119

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of analysis of creep behaviour in short term creep tests of cast MAR-247 nickel-based superalloy samples made using various modification techniques and heat treatment. The accelerated creep tests were performed under temperature of 982 °C and the axial stresses of σ = 150 MPa (variant I) and 200 MPa (variant II). The creep behaviour was analysed based on: creep durability (creep rupture life), steady-state creep rate and morphological parameters of macro- and microstructure. It was observed that the grain size determines the creep durability in case of test conditions used in variant I, durability of coarse-grained samples was significantly higher.

Słowa kluczowe

EN

nickel superalloys; creep; macrostructure; microstructure

• 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: 2016
• Tom: Vol. 61, iss. 2A
• Strony: 701--704
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Cieśla M.

• Silesian University of Technology, 8 Krasińskiego Str., 40-018 Katowice, Poland

autor

Mańka M.

• Silesian University of Technology, 8 Krasińskiego Str., 40-018 Katowice, Poland

autor

Binczyk F.

• Silesian University of Technology, 8 Krasińskiego Str., 40-018 Katowice, Poland

autor

Gradoń P.

• Silesian University of Technology, 8 Krasińskiego Str., 40-018 Katowice, Poland

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