Creep Behaviour of Modified Mar-247 Superalloy

Autor:	Cieśla M., Mańka M., Binczyk F., Gradoń P.
Jazyk:	angličtina
Rok vydání:	2016
Předmět:	nickel superalloys creep macrostructure microstructure Mining engineering. Metallurgy TN1-997 Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Archives of Metallurgy and Materials, Vol 61, Iss 2, Pp 701-704 (2016)
Druh dokumentu:	article
ISSN:	2300-1909 2016-0119
DOI:	10.1515/amm-2016-0119
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/36709fe3f7cf46af995ed0c4beaf65ea Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF