Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range

Nickel-based alloys are widely used in industries such as the aircraft industry, chemicals, power generation, and others. Their stable mechanical properties in combination with high resistance to aggressive environments at high temperatures make these materials suitable for the production of compone...

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Main Authors: Łyczkowska K., Adamiec J., Jachym R., Kwieciński K.
Format: Article
Language:English
Published: Sciendo 2017-12-01
Series:Archives of Foundry Engineering
Subjects:
Online Access:http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0138/afe-2017-0138.xml?format=INT
id doaj-art-e9917f27b7ae42fc9536fab8caf87659
recordtype oai_dc
spelling doaj-art-e9917f27b7ae42fc9536fab8caf876592018-09-02T15:54:16ZengSciendoArchives of Foundry Engineering 2299-29442017-12-0117410310810.1515/afe-2017-0138afe-2017-0138Properties of the Inconel 713 Alloy Within the High Temperature Brittleness RangeŁyczkowska K.0Adamiec J.1Jachym R.2Kwieciński K.3Institute of Materials Science, Silesian University of Technology, Krasińskiego 13, 40-019 Katowice, PolandInstitute of Materials Science, Silesian University of Technology, Krasińskiego 13, 40-019 Katowice, PolandWelding Institute, Bl. Czeslawa 16-18, 44-100 Gliwice, PolandWelding Institute, Bl. Czeslawa 16-18, 44-100 Gliwice, PolandNickel-based alloys are widely used in industries such as the aircraft industry, chemicals, power generation, and others. Their stable mechanical properties in combination with high resistance to aggressive environments at high temperatures make these materials suitable for the production of components of devices and machines intended for operation in extremely difficult conditions, e.g. in aircraft engines. This paper presents the results of thermal and mechanical tests performed on precision castings made of the Inconel 713C alloy and intended for use in the production of low pressure turbine blades. The tests enabled the determination of the nil strength temperature (NST), the nil ductility temperature (NDT), and the ductility recovery temperature (DRT) of the material tested. Based on the values obtained, the high temperature brittleness range (HTBR) and the hot cracking resistance index were determined. Metallographic examinations were conducted in order to describe the cracking mechanisms. It was found that the main cracking mechanism was the partial melting of grains and subsequently the rupture of a thin liquid film along crystal boundaries as a result of deformation during crystallisation. Another cracking mechanism identified was the DDC (Ductility Dip Cracking) mechanism. The results obtained provide a basis for improving precision casting processes for aircraft components and constitute guidelines for designers, engineers, and casting technologists.http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0138/afe-2017-0138.xml?format=INTThermal and mechanical testsInconel 713CGleebleHigh temperature brittleness range
institution Open Data Bank
collection Open Access Journals
building Directory of Open Access Journals
language English
format Article
author Łyczkowska K.
Adamiec J.
Jachym R.
Kwieciński K.
spellingShingle Łyczkowska K.
Adamiec J.
Jachym R.
Kwieciński K.
Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range
Archives of Foundry Engineering
Thermal and mechanical tests
Inconel 713C
Gleeble
High temperature brittleness range
author_facet Łyczkowska K.
Adamiec J.
Jachym R.
Kwieciński K.
author_sort Łyczkowska K.
title Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range
title_short Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range
title_full Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range
title_fullStr Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range
title_full_unstemmed Properties of the Inconel 713 Alloy Within the High Temperature Brittleness Range
title_sort properties of the inconel 713 alloy within the high temperature brittleness range
publisher Sciendo
series Archives of Foundry Engineering
issn 2299-2944
publishDate 2017-12-01
description Nickel-based alloys are widely used in industries such as the aircraft industry, chemicals, power generation, and others. Their stable mechanical properties in combination with high resistance to aggressive environments at high temperatures make these materials suitable for the production of components of devices and machines intended for operation in extremely difficult conditions, e.g. in aircraft engines. This paper presents the results of thermal and mechanical tests performed on precision castings made of the Inconel 713C alloy and intended for use in the production of low pressure turbine blades. The tests enabled the determination of the nil strength temperature (NST), the nil ductility temperature (NDT), and the ductility recovery temperature (DRT) of the material tested. Based on the values obtained, the high temperature brittleness range (HTBR) and the hot cracking resistance index were determined. Metallographic examinations were conducted in order to describe the cracking mechanisms. It was found that the main cracking mechanism was the partial melting of grains and subsequently the rupture of a thin liquid film along crystal boundaries as a result of deformation during crystallisation. Another cracking mechanism identified was the DDC (Ductility Dip Cracking) mechanism. The results obtained provide a basis for improving precision casting processes for aircraft components and constitute guidelines for designers, engineers, and casting technologists.
topic Thermal and mechanical tests
Inconel 713C
Gleeble
High temperature brittleness range
url http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0138/afe-2017-0138.xml?format=INT
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