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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Sciendo
2017-12-01
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| Series: | Archives of Foundry Engineering |
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| Online Access: | http://www.degruyter.com/view/j/afe.2017.17.issue-4/afe-2017-0138/afe-2017-0138.xml?format=INT |
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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 |
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| 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 |
| _version_ |
1612636081128210432 |