Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials
This work is focused on the development of creep and stress relaxation models on Inconel 625 and Stainless Steel 310 materials for additive manufacturing. At the end, the operational lifespan of an industrial-scale additive manufactured recuperator is evaluated. An industrial-scale recuperator for b...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/22/7226 |
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| author | Christos Papalexis Dimitrios Rakopoulos Nikolaos Nikolopoulos Alessandro Della Rocca Guido Jochler Oriana Tassa Christos Kalligeros Panteleimon Tzouganakis Vasilios Spitas |
| author_facet | Christos Papalexis Dimitrios Rakopoulos Nikolaos Nikolopoulos Alessandro Della Rocca Guido Jochler Oriana Tassa Christos Kalligeros Panteleimon Tzouganakis Vasilios Spitas |
| author_sort | Christos Papalexis |
| collection | DOAJ |
| description | This work is focused on the development of creep and stress relaxation models on Inconel 625 and Stainless Steel 310 materials for additive manufacturing. At the end, the operational lifespan of an industrial-scale additive manufactured recuperator is evaluated. An industrial-scale recuperator for burners with a highly complex geometry is manufactured using Continuous Wave SLM and Pulsed Wave Selective Laser Melting techniques. The recuperator operates under steady but high thermal loads, reaching temperatures of up to 875 °C. Therefore, its service life is assessed, considering creep and stress relaxation phenomena. Two different materials are evaluated: Inconel 625 and Stainless Steel 310. Tensile testing has been conducted on samples at various temperatures to acquire material parameters, incorporating appropriately the anisotropic nature of the materials. Creep parameters were determined through creep experiments and data from the literature, and the recuperator response was simulated by FEA modelling. Analytical creep and stress relaxation models were proposed based on the simulation results for each material to predict their creep response. The service life was determined by applying a custom failure criterion based on the creep testing data. The Inconel 625 recuperator exhibits a service life that is significantly higher compared to any burner’s life, while the Stainless Steel 310 recuperator exhibits approximately 27 years of service life. Both materials are considered suitable; however, Inconel 625 offers higher resistance to creep according to creep tests, and due to its lower thermal expansion coefficient, the resulting thermal stresses are lower. |
| first_indexed | 2024-03-09T16:39:17Z |
| format | Article |
| id | doaj.art-930bfdb9320c4a88943cb66e22e9e6dd |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T16:39:17Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-930bfdb9320c4a88943cb66e22e9e6dd2023-11-24T14:53:54ZengMDPI AGMaterials1996-19442023-11-011622722610.3390/ma16227226Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S MaterialsChristos Papalexis0Dimitrios Rakopoulos1Nikolaos Nikolopoulos2Alessandro Della Rocca3Guido Jochler4Oriana Tassa5Christos Kalligeros6Panteleimon Tzouganakis7Vasilios Spitas8Centre for Research & Technology Hellas, Chemical Process & Energy Resources Institute, 52, Egialias Str., 15125 Athens, GreeceCentre for Research & Technology Hellas, Chemical Process & Energy Resources Institute, 52, Egialias Str., 15125 Athens, GreeceCentre for Research & Technology Hellas, Chemical Process & Energy Resources Institute, 52, Egialias Str., 15125 Athens, GreeceGlobal R&D, Tenova SpA, 16153 Genova, ItalyRina Consulting Centro Sviluppo Materiali SpA, 00128 Rome, ItalyRina Consulting Centro Sviluppo Materiali SpA, 00128 Rome, ItalyLaboratory of Machine Design, National Technical University of Athens, 9 Iroon Polytechniou, 15780 Zografou, GreeceCentre for Research & Technology Hellas, Chemical Process & Energy Resources Institute, 52, Egialias Str., 15125 Athens, GreeceLaboratory of Machine Design, National Technical University of Athens, 9 Iroon Polytechniou, 15780 Zografou, GreeceThis work is focused on the development of creep and stress relaxation models on Inconel 625 and Stainless Steel 310 materials for additive manufacturing. At the end, the operational lifespan of an industrial-scale additive manufactured recuperator is evaluated. An industrial-scale recuperator for burners with a highly complex geometry is manufactured using Continuous Wave SLM and Pulsed Wave Selective Laser Melting techniques. The recuperator operates under steady but high thermal loads, reaching temperatures of up to 875 °C. Therefore, its service life is assessed, considering creep and stress relaxation phenomena. Two different materials are evaluated: Inconel 625 and Stainless Steel 310. Tensile testing has been conducted on samples at various temperatures to acquire material parameters, incorporating appropriately the anisotropic nature of the materials. Creep parameters were determined through creep experiments and data from the literature, and the recuperator response was simulated by FEA modelling. Analytical creep and stress relaxation models were proposed based on the simulation results for each material to predict their creep response. The service life was determined by applying a custom failure criterion based on the creep testing data. The Inconel 625 recuperator exhibits a service life that is significantly higher compared to any burner’s life, while the Stainless Steel 310 recuperator exhibits approximately 27 years of service life. Both materials are considered suitable; however, Inconel 625 offers higher resistance to creep according to creep tests, and due to its lower thermal expansion coefficient, the resulting thermal stresses are lower.https://www.mdpi.com/1996-1944/16/22/7226creep and stress relaxation modeladditive manufactured recuperatorInconel 625Stainless Steel 310creep failure criterion |
| spellingShingle | Christos Papalexis Dimitrios Rakopoulos Nikolaos Nikolopoulos Alessandro Della Rocca Guido Jochler Oriana Tassa Christos Kalligeros Panteleimon Tzouganakis Vasilios Spitas Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials Materials creep and stress relaxation model additive manufactured recuperator Inconel 625 Stainless Steel 310 creep failure criterion |
| title | Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials |
| title_full | Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials |
| title_fullStr | Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials |
| title_full_unstemmed | Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials |
| title_short | Developing Creep and Stress Relaxation Models to Assess the Service Life of an Additive Manufactured Industrial-Scale Recuperator Utilizing Inconel 625 and AISI 310S Materials |
| title_sort | developing creep and stress relaxation models to assess the service life of an additive manufactured industrial scale recuperator utilizing inconel 625 and aisi 310s materials |
| topic | creep and stress relaxation model additive manufactured recuperator Inconel 625 Stainless Steel 310 creep failure criterion |
| url | https://www.mdpi.com/1996-1944/16/22/7226 |
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