1. Experimental investigations on tribological and mechanical behavior of ▫$CNTs/Al_2O_3/GNP$▫ reinforced epoxy and polyamide hybrid nanocompositesR. Veeramanikandan, Chellamuthu Sabarinathan, D. Tamilvendan, T. A. Sundaravadivel, 2025, izvirni znanstveni članek Ključne besede: wear, tensile properties, nanoindentation, CNTs, Al2O3, graphene nanoplatelets
Objavljeno v DiRROS: 20.06.2025; Ogledov: 123; Prenosov: 68
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2. Load influence on the friction and wear behavior of arc ion plated Cr coatingsJinpeng Yang, Guanghui Wang, Haimin Yan, Zijun Wang, Cean Guo, Jian Zhang, 2025, izvirni znanstveni članek Ključne besede: friction and wear, Cr coating, arc ion plating, tribofilm
Objavljeno v DiRROS: 20.06.2025; Ogledov: 98; Prenosov: 57
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3. Laser surface modification of CRVN coatings for self-lubricating performanceBojan Podgornik, Barbara Šetina, Miha Čekada, Suman Chatterjee, Dermot Brabazon, 2025, objavljeni znanstveni prispevek na konferenci Ključne besede: CrVN coating, laser modification, hot forming, self-lubrication, wear, friction
Objavljeno v DiRROS: 14.05.2025; Ogledov: 252; Prenosov: 77
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4. Investigation of the wear-resistance characteristics of alumina-zirconia-titania-coated Al-6061 alloy for different processing parametersC. Suresh, Duraisamy Revathi Ponnusamy Rajarathnam, A. P. Sivasubramaniam, G. Saravanan, 2025, izvirni znanstveni članek Ključne besede: ceramic coating, wear resistance, aluminum alloy, wear rate, thermal coating
Objavljeno v DiRROS: 24.04.2025; Ogledov: 290; Prenosov: 97
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6. Combining ultrafast laser texturing and laser hardening to enhance surface durability by improving hardness and wear performanceAbhijit Cholkar, Suman Chatterjee, Sujith Kumar, Marko Sedlaček, Bojan Podgornik, David Kinahan, Dermot Brabazon, 2024, izvirni znanstveni članek Povzetek: Aluminum alloy 7075 is utilized widely across marine, aerospace, and automotive sectors. However, its surface wear resistance has hindered its application in certain tribological environments. Addressing this challenge, the current study examines a hybrid laser method to increase surface wear resistance by combining two techniques: ultrafast laser texturing and laser-based surface hardening. Ultrafast laser processing is conducted using 3 W laser power, 100 kHz pulse repetition rate, 4 mm s-1 scanning speed, and three different scan patterns. After the texturing operation, laser-based surface hardening is then performed on these textures using a continuous wave laser. The laser heat treatment is conducted using laser powers of 400 and 500 W with three different scan speeds of 1, 2, and 3 mm s-1 . Microhardness evaluations show a notable increase in hardness, with the hardest sample exhibiting a 17.8% increase compared to the pristine sample. The lasertextured and laser heat-treated samples exhibit a significant reduction in the average coefficient of friction and wear volumes compared to samples that were laser-textured but not laser heat-treated. The investigated laser processing strategy offers a promising approach for surface modification, enhancing both mechanical properties and wear resistance of aluminum alloy 7075 surfaces.
Ključne besede: hardness, laser hardening, parametric modeling, surface modification, ultrafast laser texturing, wear resistance
Objavljeno v DiRROS: 05.11.2024; Ogledov: 450; Prenosov: 873
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7. Enhancing magnesium bioactivity for biomedical applications : effects of laser texturing and sandblasting on surface propertiesMarjetka Conradi, Aleksandra Kocijan, Bojan Podgornik, 2024, izvirni znanstveni članek Povzetek: Magnesium and its alloys, valued for their lightweight and durable characteristics, have garnered increasing attention for biomedical applications due to their exceptional biocompatibility and biodegradability. This work introduces a comparison of advanced and basic methods—laser texturing and sandblasting—on magnesium surfaces to enhance bioactivity for biomedical applications. Employing a comprehensive analysis spanning surface morphology, hardness, wettability, tribological performance, and corrosion behavior, this study elucidates the intricate relationship between varied surface treatments and magnesium’s performance. Findings reveal that both laser texturing and sandblasting induce grain refinement. Notably, sandblasting, particularly with a duration of 2 s, demonstrates superior wear resistance and reduced corrosion rates compared to untreated magnesium, thereby emerging as a promising approach for enhancing magnesium bioactivity in biomedical contexts. This investigation contributes to a deeper understanding of the nuanced interactions between diverse surface treatments and their implications for magnesium implants in chloride-rich environments, offering valuable insights for prospective biomedical applications.
Ključne besede: biomaterial, microstructure, hardness, friction/wear, corrosion
Objavljeno v DiRROS: 18.10.2024; Ogledov: 445; Prenosov: 12589
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8. Degradation processes of two compound layers on nitrided surfaces during the wear test by ‘‘block on hot al cylinder’’Martin Lamut, Jaka Burja, Milan Terčelj, Goran Kugler, David Bombač, 2024, izvirni znanstveni članek Ključne besede: wear, nitrided steel, hot-work tool steel, thermal fatigue, aluminium extrusion, tool surface degradation
Objavljeno v DiRROS: 30.08.2024; Ogledov: 626; Prenosov: 414
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10. Sliding wear behaviour of conventional and cryotreated PM Cr-V (Vanadis 6) ledeburitic tool steelVenu Yarasu, Peter Jurči, Peter Gogola, Bojan Podgornik, Marko Sedlaček, 2023, izvirni znanstveni članek Ključne besede: cold work tool steel, conventional treatment, cryogenic treatment, hardness, reciprocal sliding, wear
Objavljeno v DiRROS: 08.04.2024; Ogledov: 987; Prenosov: 172
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