The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy

The paper presents the results of research concerning the influence of hot plastic working parameters on the deformability and microstructure of a Ni-Fe superalloy. The research was performed on a torsion plastometer in the range of temperatures of 900-1150°C, at a strain rates 0.1 and 1.0 s-1. Plas...

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Main Authors: Ducki K. J., Rodak K., Mendala J., Wojtynek L.
Format: Article
Language:English
Published: Polish Academy of Sciences 2017-03-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:http://www.degruyter.com/view/j/amm.2017.62.issue-1/amm-2017-0044/amm-2017-0044.xml?format=INT
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author Ducki K. J.
Rodak K.
Mendala J.
Wojtynek L.
author_facet Ducki K. J.
Rodak K.
Mendala J.
Wojtynek L.
author_sort Ducki K. J.
collection DOAJ
description The paper presents the results of research concerning the influence of hot plastic working parameters on the deformability and microstructure of a Ni-Fe superalloy. The research was performed on a torsion plastometer in the range of temperatures of 900-1150°C, at a strain rates 0.1 and 1.0 s-1. Plastic properties of the alloy were characterized by the worked out flow curves and the temperature relationships of flow stress and strain limit. The structural inspections were performed on microsections taken from plastometric samples after so-called “freezing”. The stereological parameters as the recrystallized grain size, inhomogenity and grain shape have been determined. Functional relations between the Zener-Hollomon parameter and the maximum yield stress and the average grain area have been developed and the activation energy for hot working has been estimated.
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spelling doaj.art-2cdc2f9f06ab4929a57313d8204ba8822022-12-21T18:41:33ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092017-03-0162129730210.1515/amm-2017-0044amm-2017-0044The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloyDucki K. J.0Rodak K.1Mendala J.2Wojtynek L.3Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, PolandSilesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, PolandSilesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, PolandSilesian University of Technology, Faculty of Materials Engineering and Metallurgy, 8 Krasińskiego Str., 40-019 Katowice, PolandThe paper presents the results of research concerning the influence of hot plastic working parameters on the deformability and microstructure of a Ni-Fe superalloy. The research was performed on a torsion plastometer in the range of temperatures of 900-1150°C, at a strain rates 0.1 and 1.0 s-1. Plastic properties of the alloy were characterized by the worked out flow curves and the temperature relationships of flow stress and strain limit. The structural inspections were performed on microsections taken from plastometric samples after so-called “freezing”. The stereological parameters as the recrystallized grain size, inhomogenity and grain shape have been determined. Functional relations between the Zener-Hollomon parameter and the maximum yield stress and the average grain area have been developed and the activation energy for hot working has been estimated.http://www.degruyter.com/view/j/amm.2017.62.issue-1/amm-2017-0044/amm-2017-0044.xml?format=INTIncolloy 718hot deformationrecrystallizationquantitative metallographyZener-Hollomon parameter
spellingShingle Ducki K. J.
Rodak K.
Mendala J.
Wojtynek L.
The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy
Archives of Metallurgy and Materials
Incolloy 718
hot deformation
recrystallization
quantitative metallography
Zener-Hollomon parameter
title The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy
title_full The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy
title_fullStr The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy
title_full_unstemmed The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy
title_short The characteristic of deformability and quantitative description of the microstructure of hot-deformed Ni-Fe superalloy
title_sort characteristic of deformability and quantitative description of the microstructure of hot deformed ni fe superalloy
topic Incolloy 718
hot deformation
recrystallization
quantitative metallography
Zener-Hollomon parameter
url http://www.degruyter.com/view/j/amm.2017.62.issue-1/amm-2017-0044/amm-2017-0044.xml?format=INT
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