Browsing by Author "Rosenkranz, Andreas "

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    Additively manufactured 316L steel reinforced by multi-layer Ti3C2Tx for enhanced mechanical and bio-tribological performance
    (2025) Ramteke, R Sangharatna Munneshwar; Ramos Grez, Jorge; Rosenkranz, Andreas ; Marian, Max
    Implant materials often suffer from wear, surface degradation, and poor biocompatibility, leading to reduced durability and compromised patient outcomes. Addressing these challenges requires the development of advanced biomaterials with enhanced mechanical strength and bio-tribological performance. In this context, we explore the incorporation of multi-layer Ti3C2Tx into a 316L metal matrix to enhance mechanical and biotribological properties for biomedical applications. Metal matrix composites (MMCs) with 1, 2, and 3 wt.-% Ti3C2Tx were fabricated using laser powder bed fusion (LPBF). Mechanical properties, including surface roughness and hardness, and the bio-tribological behavior were evaluated under dry and synovial body fluid (SBF)-lubricated conditions at 37 ◦C. Lower Ti3C2Tx concentrations yielded smoother surfaces, while higher concentrations increased roughness due to particle agglomeration and clustering. However, the resulting hardness improved especially for an addition of 3 wt.-% Ti3C2Tx. The 1 wt.-% Ti3C2Tx MMCs reduced wear by 31 and 19 % under dry and SBF conditions, respectively, while balls wear (counter-bodies) were reduced by 51 and 13%, respectively. These results highlight the potential of multi-layer Ti3C2Tx to improve the durability and performance of medical devices, demonstrating their promise as advanced biomaterials.
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    Fundamental and Practical Aspects of Tribology
    (CRC Press, 2024) Berman, Diana; Rosenkranz, Andreas; Marian, Max
    © 2025 Diana Berman, Andreas Rosenkranz, and Max Marian.Fundamental and Practical Aspects of Tribology introduces the rudiments of engineering surfaces and teaches the basic phenomena of interacting surfaces in relative motion, major modes of friction and wear, and theories of contact evolution and lubrication. Fundamental topics include friction, wear, and lubrication; surface properties and surface topography; friction of surfaces in contact; wear and surface failures; biotribology; boundary lubrication; fluid properties; hydrodynamic lubrication; bearing selection; and introductory micro- and nanotribology. This book also considers the relationship between nano- and macrotribology, rolling contacts, tribological problems in magnetic recording and electrical contacts, and monitoring and diagnosis of friction and wear. • Offers a comprehensive review of the fundamentals, providing basic information for scientists and engineers just being introduced to the tribology field • Teaches tribological methods of measurements and characterization • Includes examples of real-life tribological problems and case studies of engineering problems and solutions • Gives an overview of current advancements in the field • Features end-of-chapter problems, solutions to exercises, and accompanying video content for reinforcement of material This textbook is written for students taking courses in tribology and lubrication, as well as surface engineering. It will also appeal to scientists and engineers who are new to tribology. The text also offers sample laboratory demonstrations available to qualifying adopting professors.