1. Enhanced mechanical performance and refined intermetallic layer in underwater friction-stir-welded AA5083–Cu dissimilar jointsPattanam Ramamoorthy Kannan, N. Premkumar, M. Arul, S. Dinesh, 2026, izvirni znanstveni članek Ključne besede: underwater friction stir welding, AA5083 aluminum, pure copper, dissimilar joints, intermetallic compounds, mechanical properties, microstructural refinement, SEM analysis
Objavljeno v DiRROS: 04.03.2026; Ogledov: 54; Prenosov: 25
 Celotno besedilo (6,75 MB)
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2. Microstructural evolution and its impact on mechanical and corrosion performance of 316L ODS steels processed by mechanical alloying and pulse plasma sinteringAnna Dobkowska, Kalyan Das, Mirosław Jakub Kruszewski, Aleksandra Zielińska, Marlene González, Bogusława Adamczyk-Cieślak, Jiří Kubásek, Jan Pokorný, David Nečas, Črtomir Donik, Irena Paulin, Kamil Majchrowicz, Jarosław Mizera, Matjaž Godec, 2026, izvirni znanstveni članek Ključne besede: ODS steels, austenitic steels, corrosion, mechanical properties
Objavljeno v DiRROS: 02.03.2026; Ogledov: 81; Prenosov: 73
Celotno besedilo (29,65 MB)
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3. Deep learning-based prediction and experimental evaluation of mechanical properties in basalt-fiber-SiC-reinforced hybrid epoxy compositesSM Ravikumar, JM Prabhudass, A Adinaryanan, N. Yuvaraj, S. Dinesh, Elakkiya Azhagar, 2026, izvirni znanstveni članek Ključne besede: basalt fiber, silicon carbide filler, mechanical properties, deep neural network, hybrid composite for structural applications
Objavljeno v DiRROS: 26.02.2026; Ogledov: 149; Prenosov: 53
Celotno besedilo (1,34 MB)
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6. Mechanical and microstructural characterization of geopolymer synthesized from low calcium fly ashSabina Dolenec, Vilma Ducman, 2015, izvirni znanstveni članek Povzetek: This study deals with the mechanical and microstructural characterization of geopolymers synthesized from locally available fly ash. A low calcium fly ash was activated using a sodium silicate solution. Samples were characterized by means of flexural and compressive tests, Fourier Transform Infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), and scanning electron microscopy(SEM). Porosity and pore size distributions were identified using mercury intrusion porosimetry and gas sorption. The compressive strength of the produced geopolymers, which is in the range of 1.6 to 53.3 N/mm2, is strongly related to the water content as well as SiO2/Na2O mass ratio of an alkali activator. The compressive strength significantly increased with decreases in the water content and increased silicon concentration used for the synthesis of geopolymers.
Ključne besede: geopolymers, fly ash, microstructure, mechanical properties
Objavljeno v DiRROS: 05.09.2025; Ogledov: 546; Prenosov: 261
Celotno besedilo (1,29 MB)
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7. Thermal and mechanical properties of in-house-manufactured PLA and PA filaments at high temperatureNabilah Afiqah Mohd Radzuan, Izzat Mat Samudin, M. S. H. Al-Furjan, Abu Bakar Sulong, Farhana Mohd Foudzi, Muhammad Amin Azman, 2025, izvirni znanstveni članek Ključne besede: polymer composites, additive manufacturing, mechanical properties, finite element analysis
Objavljeno v DiRROS: 01.09.2025; Ogledov: 556; Prenosov: 244
Celotno besedilo (1,74 MB)
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9. Multiphase structure after heat treatment enables a superior strength-plasticity combination in Y-modified ADC12 aluminum alloysWeiye Chen, Linhao Liu, Lai Wei, Nan Jia, Guihong Geng, 2025, izvirni znanstveni članek Ključne besede: ADC12 aluminum alloy, Y-modification, T6 heat treatment, deep etching, mechanical properties, orthogonal analysis
Objavljeno v DiRROS: 20.08.2025; Ogledov: 628; Prenosov: 264
Celotno besedilo (3,18 MB)
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10. Influence of laser beam shape and post heat-treatment on the microstructure and mechanical properties of nickel-based alloy IN718 manufactured by laser powder bed fusionMatjaž Godec, Narges Mirzabeigi, Črtomir Donik, Danijela Anica Skobir Balantič, Simon Malej, Irena Paulin, Bojan Podgornik, Jonas Grünewald, Tobias Novotny, Florian Bayer, Francisco Ruiz-Zepeda, Katrin Wudy, 2025, izvirni znanstveni članek Povzetek: This study examines the effect of Gaussian and ring-shaped laser beam profiles on the microstructural development and mechanical properties of the PBF-LB/M processed nickel-based alloy Inconel 718 in its as-built and post-heat-treated conditions. Beam shaping was employed to achieve a faster build rate without compromising material properties. One of the objectives was to optimise heat treatment conditions for the beam-shaped profile. The post-heat-treatment process included four different solution annealing temperatures (954 °C, 984 °C, 1034 °C and 1154 °C), followed by two-step ageing, respectively. The microstructure evolution was revealed using scanning electron microscopy (SEM) equipped with energy-dispersive X-ray diffraction (EDS). The mechanical properties in all investigated conditions were evaluated based on tensile tests at room temperature. Using a Gaussian laser beam profile results in a fine-grained microstructure without a strong columnar orientation, while the ring beam profile produces a distinct columnar structure with larger nanodendritic grains and dislocation cells. Both beam profiles exhibit a similar proportion of Laves phase. After post-heat treatment, the Gaussian beam profile generally provides 3-7 % higher mechanical properties. The differences in mechanical properties between horizontal and vertical building directions are greater for ring-shaped laser beam profiles. Heat-treatment temperature above 1034 °C leads to recrystallisation, grain growth and the formation of carbonitrides which reduce mechanical properties. Based on the results, the proposed optimal heat-treatment temperature for both investigated laser beam shapes is 984 °C. At this temperature, tensile strength equalises between horizontal and vertical build directions while yield strength increases, which is beneficial for most applications.
Ključne besede: PBF-LB/M, beam shaping, IN718, heat treatment, mechanical properties
Objavljeno v DiRROS: 07.07.2025; Ogledov: 676; Prenosov: 334
Celotno besedilo (28,27 MB)
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