TY - CONF A1 - Theiler, Géraldine A1 - Cano Murillo, Natalia A1 - Hausberger, A. T1 - Fretting behavior of elastomer materials in hydrogen T2 - Tagungsband der 63. Tribologie Fachtagung N2 - Safety and reliability are the major challenges to face for the development and acceptance of hydrogen technology. It is therefore crucial to study deeply material compatibility, in particular polymer materials that are directly in contact with hydrogen. This paper presents an experimental study on the fretting wear behavior of two types of cross-linked hydrogenated acrylonitrile butadiene rubbers against 316L steel ball in hydrogen environment. Furthermore, aging experiments were conducted for 7 days under static conditions in 100 MPa hydrogen. the influences of hydrogen pressure as well as the aging exposure on the fretting behavior are discussed by means of surface analyses along with the material properties. T2 - 63. Tribologie-Fachtagung 2022 CY - Göttingen, Germany DA - 26.09.2022 KW - Hydrogen KW - Polymer materials KW - Fretting KW - Wear PY - 2022 SN - 978-3-9817451-7-7 SP - 58/1 EP - 58/3 AN - OPUS4-56022 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Spaltmann, Dirk A1 - Ayerdi, J. A1 - Slachciak, Nadine A1 - Llavori, I. A1 - Zabala, A. A1 - Aginagalde, A. A1 - Bonse, Jörn T1 - Tribological performance of FS-laser-induced periodic surface structures on titanium alloy against different counter-body materials using a ZDDP lubricant additive N2 - In this study the so-called laser-induced periodic surface structures (LIPSS, ripples) were produced on titanium alloy (Ti6Al4V) surfaces upon scan processing in air by a Ti:sapphire femtosecond (fs) laser. The tribological performance of the resulting surfaces was qualified in linear reciprocating sliding tribological tests (RSTT) against balls made of different materials (100Cr6 steel/Al2O3/Si3N4) using different oil-based lubricants. The admixture of the additive 2-ethylhexylzinc-dithiophosphate (ZDDP) to a base oil containing only anti-oxidants and temperature stabilizers disclosed the synergy of the additive with the laser-oxidized nanostructures. This interplay between the laser-textured sample topography and the local chemistry in the tribological contact area reduces friction and wear. T2 - 7th World Tribology Congress - WTC 2022 CY - Lyon, France DA - 11.07.2022 KW - Lubricant additives KW - Laser-induced periodic surface structures (LIPSS) KW - Wear KW - Friction PY - 2022 AN - OPUS4-55318 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Cappella, Brunero A1 - Spaltmann, Dirk A1 - Gee, M. T1 - Editorial: Tribology and Atomic Force Microscopy - Towards Single Asperity Contact JF - Frontiers in Mechanical Engineering N2 - The concept behind this Research Topic (RT) was to collect works, in which Atomic Force Microscopy (AFM) techniques are employed to study tribological phenomena and to push the resolution of measurements towards single asperity contact. Thanks to the direct determination of sample height with sub-nanometer resolution and the possibility of measuring local friction, AFM can be employed after a tribotest to detect topography and friction changes at the nanometer scale. Recently, efforts are being expended to use AFM cantilevers as tribometers, i.e., as probes altering the volume of suitable samples, thereby measuring tip and/or sample wear and friction at the nano/microscale. Thus, single asperity contact, friction, and wear can be investigated. Since friction and wear at the macroscale are the result of asperities interactions, such experiments are of great importance for better understanding of tribological processes. KW - Nanotribology KW - Friction KW - Wear KW - Single asperity KW - AFM PY - 2022 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-571037 DO - https://doi.org/10.3389/fmech.2022.853934 SN - 2297-3079 VL - 8 SP - 1 EP - 2 PB - Frontiers Media CY - Lausanne AN - OPUS4-57103 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Huang, S. A1 - Vleugels, J. A1 - Mohrbacher, H. A1 - Cannizza, E. T1 - Potentials of niobium carbide (NbC) as cutting tools and for wear protection JF - International Journal of Refractory Metals & Hard Materials N2 - Research and development of WC grades is 90 years ahead of niobium carbide-based hard materials, which showed already as light-weight and unexplored material a very high potential for many technical applications, especially for wear protection and machining. NbC evoluted recently from lab scale to pilot scale, especially in areas where established WC-based materials are causing economic, environmental or technical concerns. Benchmark trials of NbC-based hard metals indicated already a favorable performance in machining of steel components. KW - Niobium carbide KW - Friction KW - Wear KW - NbC KW - Hard metals KW - Machining KW - Nickel PY - 2018 DO - https://doi.org/10.1016/j.ijrmhm.2018.01.009 SN - 0263-4368 VL - 72 SP - 380 EP - 387 PB - Elsevier Ltd. AN - OPUS4-44166 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - The tribological property profile of hard metals and metal matrix composites based on niobium carbide T2 - Proceedings of the International Symposium on Wear Resistant Alloys for the Mining and Processing Industry N2 - This work is focused on the tribological profile of NbC-based material, as well as their potential applications and environmental implications. T2 - International Symposium on Wear Resistant Alloys for the Mining and Processing Industry CY - Sao Paulo, Brazil DA - 04.05.2015 KW - Niobium carbide KW - Metal KW - Binder KW - Metal matrix composite KW - Friction KW - Wear KW - Hardness KW - Solubility KW - Toughness KW - Abrasion PY - 2018 SN - 978-0-692-05382-9 SP - 427 EP - 461 AN - OPUS4-44201 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Le Quilliec, G. A1 - Leroy, R. A1 - Richard, C. A1 - Woydt, Mathias A1 - Morandeau, A. T1 - Comparison of the life-span of NbC-Co and WC-Co inserts during different machining operations on 100Cr6 (SAE 52100) bearing steel T2 - Proceedings of the International Symposium on Wear Resistant Alloy for the Mining and Processing Industry N2 - The aim of the study presented in this paper is to highlight the potential of niobium carbide cutting tool inserts for machining and to compare their performance to commercially available tungsten carbide inserts. In this work, a comparison between a conventional Wc-Co insert and NbC-Co inserts was carried out under hard machining conditions on specimens made of 100Cr6 bearing steel grade (SAE 52100). T2 - International Symposium on Wear Resistant Alloys for the Mining and Processing Industry CY - Sao Paulo, Brazil DA - 04.05.2015 KW - Niobium carbide KW - Cobalt KW - Fe3Al KW - Inserts KW - Cutting tools KW - Wear KW - Turning PY - 2018 SN - 978-0-692-05382-9 SP - 535 EP - 545 AN - OPUS4-44207 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Genga, R. M. A1 - Cornish, L. A. A1 - Woydt, Mathias A1 - Sobiyi, K. A1 - Polese, C. T1 - Wear and Mechanical properties of spark plasma and liquid phase sintered WC and NbC based cemented carbide inserts T2 - Proceedings of the International Symposium on Wear Resistant Alloy for the Mining and Processing Industry N2 - The effects on the mechanical properties, thermal behavior, response to cutting forces and wear mechanisms have been investigated for different manufacturing processes and materials for cemented carbide inserts. T2 - International Symposium on Wear Resistant Alloys for the Mining and Processing Industry CY - Sao Paulo, Brazil DA - 04.05.2015 KW - WC KW - NbC KW - SPS KW - Co KW - Fe3Al KW - Hard-turning KW - Interrupted milling KW - Flank KW - Wear KW - Coolant-free KW - Crater wear KW - Machinability PY - 2018 SN - 978-0-692-05382-9 SP - 547 EP - 567 AN - OPUS4-44208 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Géraldine A1 - Gradt, Thomas T1 - Friction and wear characteristics of polymers in gaseous and liquid hydrogen N2 - The tribological characteristics of pure and graphite filled polymers were investigated in gaseous hydrogen at ambient temperatures and in LH2 at -253°C. It could be shown that the tribological properties of PI and PEEK materials is related to the formation of a transfer film. The influence of both hydrogen and cryogenic temperatures will be discussed in the presentation. T2 - 21th International Colloquium Tribology CY - Stuttgart/Ostfildern, Germany DA - 09.01.2018 KW - Friction KW - Wear KW - Hydrogen KW - PEEK PY - 2018 AN - OPUS4-43902 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Theiler, Géraldine A1 - Gradt, Thomas T1 - Friction and wear characteristics of polymers in gaseous and liquid hydrogen T2 - Industrial and Automotive Lubrication N2 - The tribological characteristics of pure and graphite filled polymers were investigated in gaseous hydrogen at ambient temperatures and in LH2 at -253°C. It could be shown that the tribological properties of PI and PEEK materials is related to the formation of a transfer film. The influence of both hydrogen and cryogenic temperatures will be discussed in the presentation. T2 - 21th International Colloquium Tribology CY - Stuttgart/Ostfildern, Germany DA - 09.11.2018 KW - Friction KW - Wear KW - Hydrogen KW - PEEK PY - 2018 SP - 1 EP - 2 AN - OPUS4-43903 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Spaltmann, Dirk A1 - Woydt, Mathias T1 - An alternative approach to simulating an entire particle erosion experiment JF - Lubricants N2 - In the present work an approach is presented which combines various aspects of the former models with probability considerations. It is used to simulate the impact of more than one billion Alumina particles onto a steel substrate. This approach permits the simulation of an entire erosion experiment on an average PC within about six hours. KW - Particle erosion KW - Wear KW - DEM KW - FEM KW - Monte-Carlo simulation KW - Alumina PY - 2018 DO - https://doi.org/10.3390/lubricants6010029 VL - 6 IS - 29 SP - 1 EP - 11 PB - MDPI AN - OPUS4-44542 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -