Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ondrej Milkovic"'
Autor:
Ivan Shepa, Erika Mudra, Dominika Capkova, Alexandra Kovalcikova, Ondrej Petrus, Frantisek Kromka, Ondrej Milkovic, Vitaliy Antal, Matej Balaz, Maksym Lisnichuk, Dominika Marcin-Behunova, Dóra Zalka, Jan Dusza
Publikováno v:
Inorganics, Vol 11, Iss 12, p 456 (2023)
This contribution describes the preparation, coupled with detailed characterization, of Nb2O5 nanofibers and their application in lithium–sulfur batteries for the improvement of electrochemical performance. The utilization of reactive needle-less e
Externí odkaz:
https://doaj.org/article/915e9cb5de2a44008f13bf18c1b1bbd8
Autor:
Lubomir Pikna, Maria Hezelova, Agnieszka Morillon, David Algermissen, Ondrej Milkovic, Robert Findorak, Martin Cesnek, Jaroslav Briancin
Publikováno v:
Metals, Vol 10, Iss 12, p 1593 (2020)
Slags produced in the steelmaking industry could be a source of chromium. Slags contain, depending on different types of slags, between 2 to 5 wt.% of Cr. Roasting of slag with NaOH, followed by subsequent leaching can produce leachates which can be
Externí odkaz:
https://doaj.org/article/8c51468db02c4e49aa3943b5b505acb2
Publikováno v:
Acta Metallurgica Slovaca, Vol 21, Iss 1 (2015)
The main aim of this work is to point out on possibility of properties improving of the aluminium alloy EN AW 6082 (AlSi1MgMn) with an appropriate combination of pre-ECAP solution annealing, the application of the severe plastic deformation by ECAP t
Externí odkaz:
https://doaj.org/article/d2c6e678ebd348b990340ca2a17b78a9
Autor:
Ladislav Falat, Lucia Čiripová, Viera Homolová, Miroslava Ďurčová, Ondrej Milkovič, Ivan Petryshynets, Róbert Džunda
Publikováno v:
Materials, Vol 17, Iss 17, p 4303 (2024)
This work deals with the effects of two individual isothermal aging experiments (450 °C/5000 h and 700 °C/2500 h) and the subsequent room-temperature electrolytic hydrogen charging of TP316H stainless steel on its Charpy V-notch (CVN) impact toughn
Externí odkaz:
https://doaj.org/article/89c3c7d6901d4c0c98b7e1f6896bb1fb
Autor:
Ladislav Falat, Lucia Čiripová, Ivan Petryshynets, Ondrej Milkovič, Miroslav Džupon, Karol Kovaľ
Publikováno v:
Crystals, Vol 12, Iss 10, p 1419 (2022)
In this work, the effects of electrochemical hydrogen charging of 316H grade austenitic stainless steel were investigated in order to characterize its hydrogen embrittlement (HE) resistance. The as-received 316H material was in a fully recrystallized
Externí odkaz:
https://doaj.org/article/531e71de0633405db65423fc78187b58
Autor:
Małgorzata Grudzień-Rakoczy, Łukasz Rakoczy, Rafał Cygan, Konrad Chrzan, Ondrej Milkovič, Zenon Pirowski
Publikováno v:
Materials, Vol 15, Iss 9, p 3296 (2022)
The as-cast microstructure, alloying element segregation, solidification behavior, and thermal stability of model superalloys based on Inconel 740 with various Al/Ti ratios (0.7, 1.5, 3.4) and Ta (2.0, 3.0, 4.0 wt%) concentrations were investigated v
Externí odkaz:
https://doaj.org/article/94726e5c900848f2942d90e7a29a20af
Autor:
Łukasz Rakoczy, Ondrej Milkovič, Bogdan Rutkowski, Rafał Cygan, Małgorzata Grudzień-Rakoczy, František Kromka, Anna Zielińska-Lipiec
Publikováno v:
Materials, Vol 13, Iss 10, p 2397 (2020)
In situ X-ray diffraction and transmission electron microscopy has been used to investigate René 108 Ni-based superalloy after short-term annealing at high-homologous temperatures. Current work is focused on characterisation of γ′ precipitates, t
Externí odkaz:
https://doaj.org/article/f962bd788ed844b8bf58990eb40bc3eb
Autor:
Małgorzata Grudzień-Rakoczy, Łukasz Rakoczy, Rafał Cygan, František Kromka, Zenon Pirowski, Ondrej Milkovič
Publikováno v:
Materials, Vol 13, Iss 10, p 2362 (2020)
The chemical composition of standard Inconel 740 superalloy was modified by changes in the Al/Ti ratio (0.7, 1.5, 3.4) and addition of Ta (2.0, 3.0, 4.0%). Remelted Inconel 740 (A0) and nine variants with various chemical compositions were fabricated
Externí odkaz:
https://doaj.org/article/3b003182c7cc46209517a84f352881ed
Autor:
Miloš Matvija, Martin Fujda, Ondrej Milkovič, Marek Vojtko, Róbert Kočiško, Miroslav Glogovský
Publikováno v:
Advances in Materials Science and Engineering, Vol 2018 (2018)
The changes in the microstructure and improvement in the mechanical properties of as-cast AlSi7MgCu0.5 alloy induced by the heat treatment and technique of equal channel angular pressing (ECAP) were investigated. The heat treatment of as-cast alloy p
Externí odkaz:
https://doaj.org/article/77f8cbe63eca4c698c2feadfddd4cac2
Autor:
Janette Brezinová, Miroslav Džupon, Marek Vojtko, Ján Viňáš, Ondrej Milkovič, Jakub Brezina, Anna Guzanová, Dagmar Draganovská
Publikováno v:
Metals, Vol 9, Iss 11, p 1232 (2019)
This paper presents results of the research focused on the possibility of the restoration of the shape parts of molds made of X15CrNiSi20-12 (EN 100 95) heat-resistant austenitic chromium-nickel stainless steel working in high-pressure die casting of
Externí odkaz:
https://doaj.org/article/15c015c3ae9e4f1bbfeedcbf02b090f2