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Original title:
Effect of grit blasting surface treatment on high temperature low cycle fatigue life of Inconel 713LC
Authors: Šulák, Ivo ; Obrtlík, Karel ; Čelko, L. ; Gejdoš, P.
Document type: Papers
Conference/Event: Multi Scale Design of Advanced Materials, Velké Bílovice (CZ), 2015-05-28 / 2015-05-29
Year: 2015
Language: eng
Abstract: This paper presents the results of high temperature low cycle fatigue tests carried out on Inconel 713LC. This polycrystalline nickel based superalloys is mainly used for high temperature applications such as disks, blades and vanes of gas turbine engines. These machine components are manufactured by investment casting and undergo a series of postcast processes to remove remnants of shells, oxides and other contaminants. Grit blasting is one of the most widely used and cheapest technology ensuring adequate cleaning of the surface and at the same time is used to treat the substrate surface prior to application of metalic bond coat and various protective coatings (like diffusion, overlay or thermall barier coatings). Low cycle fatigue tests were conducted on as-received and grit blasted material in fully reversed pull-push cycle in strain control mode with constant total strain amplitude and strain rate at 900 °C in air. Experimental data on fatigue life were evaluated and parameters of Baquin and Coffin-Manson curves were obtained for both tested materials. Specimen surface and cross sections of both treated and untreated materials were analysed prior to fatigue tests and also after testing by means of optical microscopy (OM), as well as scaning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) and Vickers microhardness was measured. Fatigue degradation mechanisms was documented in both materials and negligible effect of grit blasting on low cycle parameters was discussed.
Keywords: Grit blasting; High temperature fatigue life; Inocel 713LC; Surface microhardnes; Surface relief
Project no.: EE2.3.20.0214, GA15-20991S (CEP)
Funding provider: GA MŠk, GA ČR
Host item entry: Multi-level Design of Advanced Materials, ISBN 978-80-214-5146-9
Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0249306
Permalink: http://www.nusl.cz/ntk/nusl-200422
The record appears in these collections:
Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers
Authors: Šulák, Ivo ; Obrtlík, Karel ; Čelko, L. ; Gejdoš, P.
Document type: Papers
Conference/Event: Multi Scale Design of Advanced Materials, Velké Bílovice (CZ), 2015-05-28 / 2015-05-29
Year: 2015
Language: eng
Abstract: This paper presents the results of high temperature low cycle fatigue tests carried out on Inconel 713LC. This polycrystalline nickel based superalloys is mainly used for high temperature applications such as disks, blades and vanes of gas turbine engines. These machine components are manufactured by investment casting and undergo a series of postcast processes to remove remnants of shells, oxides and other contaminants. Grit blasting is one of the most widely used and cheapest technology ensuring adequate cleaning of the surface and at the same time is used to treat the substrate surface prior to application of metalic bond coat and various protective coatings (like diffusion, overlay or thermall barier coatings). Low cycle fatigue tests were conducted on as-received and grit blasted material in fully reversed pull-push cycle in strain control mode with constant total strain amplitude and strain rate at 900 °C in air. Experimental data on fatigue life were evaluated and parameters of Baquin and Coffin-Manson curves were obtained for both tested materials. Specimen surface and cross sections of both treated and untreated materials were analysed prior to fatigue tests and also after testing by means of optical microscopy (OM), as well as scaning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) and Vickers microhardness was measured. Fatigue degradation mechanisms was documented in both materials and negligible effect of grit blasting on low cycle parameters was discussed.
Keywords: Grit blasting; High temperature fatigue life; Inocel 713LC; Surface microhardnes; Surface relief
Project no.: EE2.3.20.0214, GA15-20991S (CEP)
Funding provider: GA MŠk, GA ČR
Host item entry: Multi-level Design of Advanced Materials, ISBN 978-80-214-5146-9
Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0249306
Permalink: http://www.nusl.cz/ntk/nusl-200422
The record appears in these collections:
Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers
Record created 2015-09-25, last modified 2021-11-24