[{"department":[{"_id":"146"}],"publication":"Wear","keyword":["Radial shaft seal ring","Shaft surface","Cryogenic turning","Metastable austenitic steel","Deformation-induced martensite formation"],"author":[{"last_name":"Frölich","first_name":"D.","full_name":"Frölich, D."},{"last_name":"Magyar","id":"97759","first_name":"Balázs","full_name":"Magyar, Balázs"},{"first_name":"B.","full_name":"Sauer, B.","last_name":"Sauer"},{"last_name":"Mayer","full_name":"Mayer, P.","first_name":"P."},{"full_name":"Kirsch, B.","first_name":"B.","last_name":"Kirsch"},{"first_name":"J.C.","full_name":"Aurich, J.C.","last_name":"Aurich"},{"last_name":"Skorupski","first_name":"R.","full_name":"Skorupski, R."},{"full_name":"Smaga, M.","first_name":"M.","last_name":"Smaga"},{"last_name":"Beck","first_name":"T.","full_name":"Beck, T."},{"last_name":"Eifler","full_name":"Eifler, D.","first_name":"D."}],"date_created":"2022-12-15T10:17:23Z","status":"public","publication_identifier":{"issn":["0043-1648"]},"volume":"328-329","abstract":[{"text":"The state of the art industrial manufacturing process to produce shafts as counter surfaces for radial shaft seal rings is plunge grinding. This process consists of three major steps. The blank is turned to a slight diameter-oversize followed by the heat treatment and the hard-finishing by plunge grinding. The geometric surface structures of the resulting shafts in general exhibit a stochastic distribution. These surface characteristics contribute to a reliable and stable sealing functionality. And the surface and subsurface hardness generally leads to a higher wear resistance of the shaft. Motivated by economic benefits and in order to achieve a compact production process for at least ten years, turning is investigated as an alternative manufacturing process. However due to the resulting lead structure on the shaft surface and the associated risk of leakage it has not become prevalent yet. In this paper turned shafts of the metastable austenitic steel AISI 347 (1.4550, X6CrNiNb1810) are investigated as alternative material for counter surfaces of radial shaft seal rings and compared to turned shafts of carburized AISI 5115 (1.7131, 16MnCr5). In addition to surfaces dry turned at room-temperature, cryogenic turned AISI 347 counter surfaces are analyzed. By applying cryogenic cooling, the formation of deformation-induced α′-martensite in the surface layer is possible during the turning process. Endurance tests in radial shaft seal ring test rigs are performed and complemented with detailed investigations of microstructure, micro-hardness and surface topography. The results are compared to results of state of the art ground AISI 5115 shafts.","lang":"eng"}],"extern":"1","user_id":"38077","title":"Investigation of wear resistance of dry and cryogenic turned metastable austenitic steel shafts and dry turned and ground carburized steel shafts in the radial shaft seal ring system","language":[{"iso":"eng"}],"page":"123-131","year":"2015","type":"journal_article","citation":{"short":"D. Frölich, B. Magyar, B. Sauer, P. Mayer, B. Kirsch, J.C. Aurich, R. Skorupski, M. Smaga, T. Beck, D. Eifler, Wear 328–329 (2015) 123–131.","ieee":"D. Frölich et al., “Investigation of wear resistance of dry and cryogenic turned metastable austenitic steel shafts and dry turned and ground carburized steel shafts in the radial shaft seal ring system,” Wear, vol. 328–329, pp. 123–131, 2015, doi: https://doi.org/10.1016/j.wear.2015.02.004.","ama":"Frölich D, Magyar B, Sauer B, et al. Investigation of wear resistance of dry and cryogenic turned metastable austenitic steel shafts and dry turned and ground carburized steel shafts in the radial shaft seal ring system. Wear. 2015;328-329:123-131. doi:https://doi.org/10.1016/j.wear.2015.02.004","apa":"Frölich, D., Magyar, B., Sauer, B., Mayer, P., Kirsch, B., Aurich, J. C., Skorupski, R., Smaga, M., Beck, T., & Eifler, D. (2015). Investigation of wear resistance of dry and cryogenic turned metastable austenitic steel shafts and dry turned and ground carburized steel shafts in the radial shaft seal ring system. Wear, 328–329, 123–131. https://doi.org/10.1016/j.wear.2015.02.004","chicago":"Frölich, D., Balázs Magyar, B. Sauer, P. Mayer, B. Kirsch, J.C. Aurich, R. Skorupski, M. Smaga, T. Beck, and D. Eifler. “Investigation of Wear Resistance of Dry and Cryogenic Turned Metastable Austenitic Steel Shafts and Dry Turned and Ground Carburized Steel Shafts in the Radial Shaft Seal Ring System.” Wear 328–329 (2015): 123–31. https://doi.org/10.1016/j.wear.2015.02.004.","bibtex":"@article{Frölich_Magyar_Sauer_Mayer_Kirsch_Aurich_Skorupski_Smaga_Beck_Eifler_2015, title={Investigation of wear resistance of dry and cryogenic turned metastable austenitic steel shafts and dry turned and ground carburized steel shafts in the radial shaft seal ring system}, volume={328–329}, DOI={https://doi.org/10.1016/j.wear.2015.02.004}, journal={Wear}, author={Frölich, D. and Magyar, Balázs and Sauer, B. and Mayer, P. and Kirsch, B. and Aurich, J.C. and Skorupski, R. and Smaga, M. and Beck, T. and Eifler, D.}, year={2015}, pages={123–131} }","mla":"Frölich, D., et al. “Investigation of Wear Resistance of Dry and Cryogenic Turned Metastable Austenitic Steel Shafts and Dry Turned and Ground Carburized Steel Shafts in the Radial Shaft Seal Ring System.” Wear, vol. 328–329, 2015, pp. 123–31, doi:https://doi.org/10.1016/j.wear.2015.02.004."},"_id":"34441","date_updated":"2022-12-15T10:18:54Z","doi":"https://doi.org/10.1016/j.wear.2015.02.004"},{"doi":"https://doi.org/10.1016/j.wear.2013.12.030","date_updated":"2022-12-15T10:20:39Z","language":[{"iso":"eng"}],"title":"A comprehensive model of wear, friction and contact temperature in radial shaft seals","publication_identifier":{"issn":["0043-1648"]},"department":[{"_id":"146"}],"issue":"1","_id":"34442","intvolume":" 311","page":"71-80","type":"journal_article","year":"2014","citation":{"bibtex":"@article{Frölich_Magyar_Sauer_2014, title={A comprehensive model of wear, friction and contact temperature in radial shaft seals}, volume={311}, DOI={https://doi.org/10.1016/j.wear.2013.12.030}, number={1}, journal={Wear}, author={Frölich, D. and Magyar, Balázs and Sauer, B.}, year={2014}, pages={71–80} }","mla":"Frölich, D., et al. “A Comprehensive Model of Wear, Friction and Contact Temperature in Radial Shaft Seals.” Wear, vol. 311, no. 1, 2014, pp. 71–80, doi:https://doi.org/10.1016/j.wear.2013.12.030.","ama":"Frölich D, Magyar B, Sauer B. A comprehensive model of wear, friction and contact temperature in radial shaft seals. Wear. 2014;311(1):71-80. doi:https://doi.org/10.1016/j.wear.2013.12.030","apa":"Frölich, D., Magyar, B., & Sauer, B. (2014). A comprehensive model of wear, friction and contact temperature in radial shaft seals. Wear, 311(1), 71–80. https://doi.org/10.1016/j.wear.2013.12.030","chicago":"Frölich, D., Balázs Magyar, and B. Sauer. “A Comprehensive Model of Wear, Friction and Contact Temperature in Radial Shaft Seals.” Wear 311, no. 1 (2014): 71–80. https://doi.org/10.1016/j.wear.2013.12.030.","ieee":"D. Frölich, B. Magyar, and B. Sauer, “A comprehensive model of wear, friction and contact temperature in radial shaft seals,” Wear, vol. 311, no. 1, pp. 71–80, 2014, doi: https://doi.org/10.1016/j.wear.2013.12.030.","short":"D. Frölich, B. Magyar, B. Sauer, Wear 311 (2014) 71–80."},"user_id":"38077","extern":"1","abstract":[{"text":"Radial shaft seals are used in a variety of applications, where rotating shafts in steady housings have to be sealed. Typical examples are crankshafts, camshafts, differential gear or hydraulic pumps. In the operating state the elastomeric seal ring and the shaft are separated by a lubrication film of just a few micrometers. Due to shear strain and fluid friction the contact area is subject to a higher temperature than the rest of the seal ring. The stiffness of the elastomeric material is intensely influenced by this temperature and thus contact pressure, friction and wear also strongly depend on the contact temperature. In order to simulate the contact behavior of elastomer seal rings it is essential to use a comprehensive approach which takes into consideration the interaction of temperature, friction and wear. Based on this idea a macroscopic simulation model has been developed at the MEGT. It combines a finite element approach for the simulation of contact pressure at different wear states, a semi-analytical approach for the calculation of contact temperature and an empirical approach for the calculation of friction. In this paper the model setup is presented, as well as simulation and experimental results.","lang":"eng"}],"volume":311,"date_created":"2022-12-15T10:19:37Z","status":"public","publication":"Wear","keyword":["Radial shaft seal ring","Contact temperature","Wear","Friction torque","Finite element simulation"],"author":[{"last_name":"Frölich","full_name":"Frölich, D.","first_name":"D."},{"last_name":"Magyar","id":"97759","first_name":"Balázs","full_name":"Magyar, Balázs"},{"last_name":"Sauer","full_name":"Sauer, B.","first_name":"B."}]},{"abstract":[{"text":"A profound description of friction in wheel--rail contact plays an essential role for optimization of traction control strategies, as input quantity for railway simulations in general and for the estimation of wear and rolling contact fatigue. A multitude of wheel--rail contact models exists, however, traction--creepage curves obtained from measurements show quantitative and qualitative deviations. There are several phenomena which influence the traction--creepage characteristics: Mechanisms resulting from surface roughness, frictional heating or the presence of interfacial fluids can have a dominating influence on friction. In this paper, a new wheel--rail contact model, accounting for these influential parameters, will be presented. The presented model accounts for the interaction of an interfacial fluid model for combined boundary and mixed lubrication of rough surfaces with a wheel--rail contact model that additionally accounts for frictional heating. A quantitative comparison with measurements found in the literature is not conducted, since the exact conditions of the measurements are mostly unknown and parameters can easily be adjusted to fit the measurements. Emphasis is placed on the qualitative behavior of the model with respect to the measurements and good agreement is found. The dependence of the maximum traction coefficient on rolling velocity, surface roughness and normal load is studied under dry and water lubricated conditions.","lang":"eng"}],"user_id":"55222","quality_controlled":"1","author":[{"full_name":"Tomberger, Christoph","first_name":"Christoph","last_name":"Tomberger"},{"last_name":"Dietmaier","first_name":"Peter","full_name":"Dietmaier, Peter"},{"first_name":"Walter","full_name":"Sextro, Walter","last_name":"Sextro","id":"21220"},{"last_name":"Six","full_name":"Six, Klaus","first_name":"Klaus"}],"keyword":["Wheel--rail contact","Rolling contact","Friction","Interfacial fluid","Lubrication","Surface roughness","Contact temperature"],"publication":"Wear","volume":271,"status":"public","date_created":"2019-05-13T11:08:32Z","_id":"9772","intvolume":" 271","citation":{"ama":"Tomberger C, Dietmaier P, Sextro W, Six K. Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature. Wear. 2011;271:2-12. doi:10.1016/j.wear.2010.10.025","apa":"Tomberger, C., Dietmaier, P., Sextro, W., & Six, K. (2011). Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature. Wear, 271, 2–12. https://doi.org/10.1016/j.wear.2010.10.025","chicago":"Tomberger, Christoph, Peter Dietmaier, Walter Sextro, and Klaus Six. “Friction in Wheel--Rail Contact: A Model Comprising Interfacial Fluids, Surface Roughness and Temperature.” Wear 271 (2011): 2–12. https://doi.org/10.1016/j.wear.2010.10.025.","mla":"Tomberger, Christoph, et al. “Friction in Wheel--Rail Contact: A Model Comprising Interfacial Fluids, Surface Roughness and Temperature.” Wear, vol. 271, 2011, pp. 2–12, doi:10.1016/j.wear.2010.10.025.","bibtex":"@article{Tomberger_Dietmaier_Sextro_Six_2011, title={Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature}, volume={271}, DOI={10.1016/j.wear.2010.10.025}, journal={Wear}, author={Tomberger, Christoph and Dietmaier, Peter and Sextro, Walter and Six, Klaus}, year={2011}, pages={2–12} }","short":"C. Tomberger, P. Dietmaier, W. Sextro, K. Six, Wear 271 (2011) 2–12.","ieee":"C. Tomberger, P. Dietmaier, W. Sextro, and K. Six, “Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature,” Wear, vol. 271, pp. 2–12, 2011."},"type":"journal_article","year":"2011","page":"2 - 12","title":"Friction in wheel--rail contact: A model comprising interfacial fluids, surface roughness and temperature","department":[{"_id":"151"}],"publication_identifier":{"issn":["0043-1648"]},"date_updated":"2022-01-06T07:04:19Z","doi":"10.1016/j.wear.2010.10.025","language":[{"iso":"eng"}]},{"author":[{"last_name":"Tomberger","full_name":"Tomberger, Christoph","first_name":"Christoph"},{"full_name":"Dietmaier, Peter","first_name":"Peter","last_name":"Dietmaier"},{"first_name":"Rosenberger","full_name":"Martin, Rosenberger","last_name":"Martin"},{"last_name":"Sextro","id":"21220","first_name":"Walter","full_name":"Sextro, Walter"},{"last_name":"Six","full_name":"Six, Klaus","first_name":"Klaus"}],"publication":"ZEVrail","department":[{"_id":"151"}],"publication_identifier":{"issn":["0043-1648"]},"volume":134,"status":"public","date_created":"2019-05-13T10:37:07Z","title":"Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen Rad und Schiene","user_id":"55222","type":"journal_article","year":"2010","citation":{"ieee":"C. Tomberger, P. Dietmaier, R. Martin, W. Sextro, and K. Six, “Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen Rad und Schiene,” ZEVrail, vol. 134, pp. 127–135, 2010.","short":"C. Tomberger, P. Dietmaier, R. Martin, W. Sextro, K. Six, ZEVrail 134 (2010) 127–135.","bibtex":"@article{Tomberger_Dietmaier_Martin_Sextro_Six_2010, title={Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen Rad und Schiene}, volume={134}, journal={ZEVrail}, author={Tomberger, Christoph and Dietmaier, Peter and Martin, Rosenberger and Sextro, Walter and Six, Klaus}, year={2010}, pages={127–135} }","mla":"Tomberger, Christoph, et al. “Einfluss von Oberflächenrauheit, Fluiden Zwischenschichten Und Kontakttemperaturen Auf Den Kraftschluss Zwischen Rad Und Schiene.” ZEVrail, vol. 134, 2010, pp. 127–35.","chicago":"Tomberger, Christoph, Peter Dietmaier, Rosenberger Martin, Walter Sextro, and Klaus Six. “Einfluss von Oberflächenrauheit, Fluiden Zwischenschichten Und Kontakttemperaturen Auf Den Kraftschluss Zwischen Rad Und Schiene.” ZEVrail 134 (2010): 127–35.","apa":"Tomberger, C., Dietmaier, P., Martin, R., Sextro, W., & Six, K. (2010). Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen Rad und Schiene. ZEVrail, 134, 127–135.","ama":"Tomberger C, Dietmaier P, Martin R, Sextro W, Six K. Einfluss von Oberflächenrauheit, fluiden Zwischenschichten und Kontakttemperaturen auf den Kraftschluss zwischen Rad und Schiene. ZEVrail. 2010;134:127-135."},"page":"127-135","language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:04:19Z","_id":"9764","intvolume":" 134"}]