The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment
Pyrolysis represents one of the most convenient technologies for the chemical transformation of waste. The exposure to corrosion products and high temperatures does, however, require chemically resistant construction materials. This study was carried out to analyze the corrosion behavior of 1.4571 (...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/1/144 |
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| author | Libor Benes Katerina Mouralova Pavol Midula Jan Snow Irena Lysonkova Dominik Pilnaj Hana Burdova Tomas Prokes Radim Zahradnicek Jiri Fries Pavel Kuráň Martin Kubenka |
| author_facet | Libor Benes Katerina Mouralova Pavol Midula Jan Snow Irena Lysonkova Dominik Pilnaj Hana Burdova Tomas Prokes Radim Zahradnicek Jiri Fries Pavel Kuráň Martin Kubenka |
| author_sort | Libor Benes |
| collection | DOAJ |
| description | Pyrolysis represents one of the most convenient technologies for the chemical transformation of waste. The exposure to corrosion products and high temperatures does, however, require chemically resistant construction materials. This study was carried out to analyze the corrosion behavior of 1.4571 (AISI 316Ti) and 1.4305 (AISI 303) stainless steels machined with wire electric discharge machining (WEDM) in a pyrolysis environment. Different machining parameters were used for both materials tested to examine the influence of WEDM machining. The total testing time in the pyrolysis environment was 28 days, with the testing chamber being refilled 12 times. The surface topography was analyzed following the WEDM, cleaning, and corrosion test. The surface morphology and cross-section analyses were carried out using electron microscopy at all three stages of the process. An analysis of the chemical composition of the surfaces was carried out as well as of the pyrolysis environment to which the samples were exposed. It was established that the organic acids found in the pyrolysis chamber did not degrade the tested stainless steels to a meaningful degree. Minor fissures, that is, fine precipitated carbides, were observed on the surface of both the steel types and in their subsurface layer, as well as a significant presence of carbon. This presence was directly connected to the impurities found on the surface after the removal from the test furnace that were probably of a protective or passivation nature. |
| first_indexed | 2024-03-09T11:41:36Z |
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| id | doaj.art-86720033ee6447b99baedd53eae81ed2 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T11:41:36Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-86720033ee6447b99baedd53eae81ed22023-11-30T23:31:20ZengMDPI AGMetals2075-47012023-01-0113114410.3390/met13010144The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis EnvironmentLibor Benes0Katerina Mouralova1Pavol Midula2Jan Snow3Irena Lysonkova4Dominik Pilnaj5Hana Burdova6Tomas Prokes7Radim Zahradnicek8Jiri Fries9Pavel Kuráň10Martin Kubenka11Faculty of Mechanical Engineering, Jan Evangelista Purkyně University, 400 96 Ústí nad Labem, Czech RepublicFaculty of Mechanical Engineering, Brno University of Technology, 616 69 Brno, Czech RepublicFaculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech RepublicFaculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech RepublicFaculty of Mechanical Engineering, Jan Evangelista Purkyně University, 400 96 Ústí nad Labem, Czech RepublicFaculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech RepublicFaculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech RepublicFaculty of Mechanical Engineering, Brno University of Technology, 616 69 Brno, Czech RepublicFaculty of Mechanical Engineering, Brno University of Technology, 616 69 Brno, Czech RepublicDepartment of Machine and Industrial Design, Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Pasteurova 3632/15, 400 96 Ústí nad Labem, Czech RepublicESAB VAMBERK, s.r.o., Smetanovo Nábřeží 334, 517 54 Vamberk, Czech RepublicPyrolysis represents one of the most convenient technologies for the chemical transformation of waste. The exposure to corrosion products and high temperatures does, however, require chemically resistant construction materials. This study was carried out to analyze the corrosion behavior of 1.4571 (AISI 316Ti) and 1.4305 (AISI 303) stainless steels machined with wire electric discharge machining (WEDM) in a pyrolysis environment. Different machining parameters were used for both materials tested to examine the influence of WEDM machining. The total testing time in the pyrolysis environment was 28 days, with the testing chamber being refilled 12 times. The surface topography was analyzed following the WEDM, cleaning, and corrosion test. The surface morphology and cross-section analyses were carried out using electron microscopy at all three stages of the process. An analysis of the chemical composition of the surfaces was carried out as well as of the pyrolysis environment to which the samples were exposed. It was established that the organic acids found in the pyrolysis chamber did not degrade the tested stainless steels to a meaningful degree. Minor fissures, that is, fine precipitated carbides, were observed on the surface of both the steel types and in their subsurface layer, as well as a significant presence of carbon. This presence was directly connected to the impurities found on the surface after the removal from the test furnace that were probably of a protective or passivation nature.https://www.mdpi.com/2075-4701/13/1/144corrosionpyrolysisWEDMwire electrical discharge machiningstainless steel |
| spellingShingle | Libor Benes Katerina Mouralova Pavol Midula Jan Snow Irena Lysonkova Dominik Pilnaj Hana Burdova Tomas Prokes Radim Zahradnicek Jiri Fries Pavel Kuráň Martin Kubenka The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment Metals corrosion pyrolysis WEDM wire electrical discharge machining stainless steel |
| title | The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment |
| title_full | The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment |
| title_fullStr | The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment |
| title_full_unstemmed | The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment |
| title_short | The Corrosion Behavior of WEDM Machined Stainless Steels in a Pyrolysis Environment |
| title_sort | corrosion behavior of wedm machined stainless steels in a pyrolysis environment |
| topic | corrosion pyrolysis WEDM wire electrical discharge machining stainless steel |
| url | https://www.mdpi.com/2075-4701/13/1/144 |
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