Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range
Tensile properties and fracture mechanism of a polycrystalline IN-100 superalloy have been investigated in the range from room temperature to 900°C. Optical microscopy (OM) and transmission electron microscopy (TEM) applying replica technique were used for microstructural investigation, whereas scan...
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doaj-0f24eb74a46844e782b28c03fcd3e1552020-11-24T21:53:28ZengAssociation of Metallurgical Engineers of SerbiaMetallurgical & Materials Engineering2217-89612017-06-0123299107249Tensile properties and fracture mechanism of IN-100 superalloy in high temperature rangeMilan T. Jovanović0Đorđe Drobnjak1Ivana Cvijović‐Alagić2Vesna Maksimović3Department of Materials Science, Institute of Nuclear Sciences "Vinča", University of BelgradeFaculty of Technology and Metallurgy, University of BelgradeDepartment of Materials Science, Institute of Nuclear Sciences "Vinča", University of BelgradeDepartment of Materials Science, Institute of Nuclear Sciences "Vinča", University of BelgradeTensile properties and fracture mechanism of a polycrystalline IN-100 superalloy have been investigated in the range from room temperature to 900°C. Optical microscopy (OM) and transmission electron microscopy (TEM) applying replica technique were used for microstructural investigation, whereas scanning electron microscopy (SEM) was utilized for fracture study. High temperature tensile tests were carried out in vacuumed chamber. Results show that strength increases up to 700°C, and then sharply decreases with further increase in temperature. Elongation increases very slowly (6-7.5%) till 500°C, then decreases to 4.5% at 900°C. Change in elongation may be ascribed to a change of fracture mechanism. Appearance of a great number of microvoids prevails up to 500°C resulting in a slow increase of elongation, whereas above this temperature elongation decrease is correlated with intergranular crystallographic fracture and fracture of carbides.https://metall-mater-eng.com/index.php/home/article/view/239Tensile strengthelongationmicrostructuremicrovoidsintergranular crystallographic fracture |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Milan T. Jovanović Đorđe Drobnjak Ivana Cvijović‐Alagić Vesna Maksimović |
spellingShingle |
Milan T. Jovanović Đorđe Drobnjak Ivana Cvijović‐Alagić Vesna Maksimović Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range Metallurgical & Materials Engineering Tensile strength elongation microstructure microvoids intergranular crystallographic fracture |
author_facet |
Milan T. Jovanović Đorđe Drobnjak Ivana Cvijović‐Alagić Vesna Maksimović |
author_sort |
Milan T. Jovanović |
title |
Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range |
title_short |
Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range |
title_full |
Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range |
title_fullStr |
Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range |
title_full_unstemmed |
Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range |
title_sort |
tensile properties and fracture mechanism of in-100 superalloy in high temperature range |
publisher |
Association of Metallurgical Engineers of Serbia |
series |
Metallurgical & Materials Engineering |
issn |
2217-8961 |
publishDate |
2017-06-01 |
description |
Tensile properties and fracture mechanism of a polycrystalline IN-100 superalloy have been investigated in the range from room temperature to 900°C. Optical microscopy (OM) and transmission electron microscopy (TEM) applying replica technique were used for microstructural investigation, whereas scanning electron microscopy (SEM) was utilized for fracture study. High temperature tensile tests were carried out in vacuumed chamber. Results show that strength increases up to 700°C, and then sharply decreases with further increase in temperature. Elongation increases very slowly (6-7.5%) till 500°C, then decreases to 4.5% at 900°C. Change in elongation may be ascribed to a change of fracture mechanism. Appearance of a great number of microvoids prevails up to 500°C resulting in a slow increase of elongation, whereas above this temperature elongation decrease is correlated with intergranular crystallographic fracture and fracture of carbides. |
topic |
Tensile strength elongation microstructure microvoids intergranular crystallographic fracture |
url |
https://metall-mater-eng.com/index.php/home/article/view/239 |
work_keys_str_mv |
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