Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Pavel Bekeč"'
Autor:
Gabriela Baranová, Mária Hagarová, Miloš Matvija, Dávid Csík, Vladimír Girman, Jozef Bednarčík, Pavel Bekeč
Publikováno v:
Crystals, Vol 13, Iss 6, p 982 (2023)
This study shows that in an atmosphere containing water vapor, the oxide layer on the surface of the 9CrNB steel MarBN (Martensitic 9Cr steel strengthened by Boron and MX Nitrides) was formed by an outer layer of hematite Fe2O3 and Cr2O3 and an inner
Externí odkaz:
https://doaj.org/article/dfb037ff3d9149fba7d384bcf09b2303
Publikováno v:
Materials Science Forum. 891:167-170
This paper deals with the analysis of microstructure in the conditions after austenitising at high temperatures (1150 °C, 1180 °C a 1210 °C/45 min) for 9CrNB steel, and with the analysis of microstructure in the conditions after subsequent temperi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96725e100827fdeebbf326133cdd869c
https://doi.org/10.4028/www.scientific.net/msf.891.167
https://doi.org/10.4028/www.scientific.net/msf.891.167
Publikováno v:
Materials Science Forum. 891:137-142
This paper deals with the optimalization of tempering temperature of 9CrNB steel in Železiarne Podbrezová Steelworks, where hot-rolled tubes were produced with dimensions of 88.9 x 12.51 mm. Austenitising at 1070°C/12m/hr was carried out after r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::015449c7d70bbeae4ca89f3c786b4147
https://doi.org/10.4028/www.scientific.net/msf.891.137
https://doi.org/10.4028/www.scientific.net/msf.891.137
Publikováno v:
Scopus-Elsevier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bae202f114ba0339724e2e1c8c4919bf
https://doi.org/10.37904/metal.2019.705
https://doi.org/10.37904/metal.2019.705
Autor:
Pavel Bekeč, Margita Longauerová, Marek Vojtko, Ondrej Milkovič, Gabriel Trefa, Gabriel Grimplini, Jiří Kadlec
Publikováno v:
Advanced Materials Research. 1127:143-149
Branched cracks are undesirable and dangerous, and under the oxidized surface of a continuously-cast slab they are mostly difficult to identify. They can cause the formation of defects in thick sheet or on thin strip. This work deals with the study o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::093b1e958afe4b87af0fe6ceabf71ee5
https://doi.org/10.4028/www.scientific.net/amr.1127.143
https://doi.org/10.4028/www.scientific.net/amr.1127.143
Autor:
Jana Konrádyová, Maria Hurakova, Margita Longauerová, Svätoboj Longauer, Mária Fedorová, Pavel Bekeč
Publikováno v:
Key Engineering Materials. 662:209-212
The aim of this work was to analyze changes in local toughness KCV using Charpy V-notch impact tests in the slab surface zone in relation to the microstructure in ULC/ IF steel and TiNb HSLA steel. Marked heterogeneity in KCV values was confirmed in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a78722efc49b52f95bb99657f768ccea
https://doi.org/10.4028/www.scientific.net/kem.662.209
https://doi.org/10.4028/www.scientific.net/kem.662.209
Autor:
Jana Konrádyová, Maria Hurakova, Jaroslav Duška, Pavel Bekeč, Margita Longauerová, Mária Fedorová, Svätoboj Longauer
Publikováno v:
Key Engineering Materials. 647:47-55
The aim of this work was to analyze the effect of sample thickness on toughness of the slab surface zone at ambient temperature in IF and microalloy steels. Transitional slabs with different pulling rates at the start and the end of the slab were use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab99f2f55499c8bb0b24e00f80f9eb89
https://doi.org/10.4028/www.scientific.net/kem.647.47
https://doi.org/10.4028/www.scientific.net/kem.647.47
Publikováno v:
Materials Science Forum. 782:215-218
Dual phase (DP), interstitial free (IF) and advanced high strength low alloy steel (HSLA)sheets have been successfully used for different components of car body. DP and HSLA are used ascrash resistant and IF as cover or “skin” of car body. The de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f9407ec1996934cef37e428b642a3ce
https://doi.org/10.4028/www.scientific.net/msf.782.215
https://doi.org/10.4028/www.scientific.net/msf.782.215
Publikováno v:
Materials Science Forum. 782:81-86
Two slabs of Ti-Nb microalloyed steel were analysed in this work. The first slab was transitional with the initial pulling rate 0.43 m.min-1 and the final pulling rate 0.9 m.min-1. The second slab was cast at the real production pulling rate 1.03 m.m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09384bde4a12da90a8935922381ea9e9
https://doi.org/10.4028/www.scientific.net/msf.782.81
https://doi.org/10.4028/www.scientific.net/msf.782.81
Publikováno v:
Acta Metallurgica Slovaca - Conference. 3
The aim of this work was to analyze the influence of technology on the morphology of fractures and Charpy impact toughness in the TiNb microalloyed steel slab surface zone. The slab was made by continuous casting using different cooling rates in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb67d67b7c210cbd7c7308d9d46d7f06
https://doi.org/10.12776/amsc.v3i0.103
https://doi.org/10.12776/amsc.v3i0.103