Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Róbert Kočiško"'
Publikováno v:
Materials, Vol 16, Iss 19, p 6473 (2023)
The article deals with increasing the mechanical properties of stainless steel 316 Ln-IG, which is intended for work in cryogenic temperatures (liquid nitrogen and liquid helium), such as conductor conduits for the ITER magnet system. The strength an
Externí odkaz:
https://doaj.org/article/9117acb4a39a4235b99c4c5d1350d6d8
Publikováno v:
Metals, Vol 13, Iss 8, p 1415 (2023)
Cold-rolled silicon steel strip products are widely used as the main soft magnetic components in cores of electrical motors, generators, and transformers. In the case of rotating electrical machines, the so-called non-oriented electro-technical steel
Externí odkaz:
https://doaj.org/article/0972a876f64c464a8388faca896bd6ed
Autor:
Patrik Petroušek, Tibor Kvačkaj, Jana Bidulská, Róbert Bidulský, Marco Actis Grande, Diego Manfredi, Klaus-Peter Weiss, Róbert Kočiško, Miloslav Lupták, Imrich Pokorný
Publikováno v:
Materials, Vol 16, Iss 11, p 3935 (2023)
Additive manufacturing, including laser powder bed fusion, offers possibilities for the production of materials with properties comparable to conventional technologies. The main aim of this paper is to describe the specific microstructure of 316L sta
Externí odkaz:
https://doaj.org/article/2884c47a99c84dbc87452a7653b22d9b
Autor:
Róbert Kočiško, Tibor Kvačkaj, Jana Bidulská, Róbert Bidulský, Patrik Petroušek, Imrich Pokorný, Miloslav Lupták, Marco Actis Grande
Publikováno v:
Materials, Vol 16, Iss 2, p 601 (2023)
The aim of the article is to examine the workability of sintered powder material of aluminum alloy (Alumix 321) through severe plastic deformations under the conditions of the equal channel angular rolling (ECAR) process. Accordingly, the stress–st
Externí odkaz:
https://doaj.org/article/c09595e935a348e0903ce052a7c71903
Publikováno v:
Acta Polytechnica, Vol 56, Iss 5, Pp 353-359 (2016)
This paper reports on an experiment to assess the influence of plastic deformation on the microstructure and properties of EN AW 6012 (AlMgSiPb) aluminium alloy in two states. The first was the initial state with heat treatment T3, and the second was
Externí odkaz:
https://doaj.org/article/d9cc82d2b4b84eb0a3a609d9324d7789
Autor:
Garima Kapoor, Tibor Kvackaj, Anita Heczel, Jana Bidulská, Róbert Kočiško, Zsolt Fogarassy, Dusan Simcak, Jenő Gubicza
Publikováno v:
Materials, Vol 13, Iss 10, p 2241 (2020)
A Cu–1.1%Cr–0.04%Zr (wt.%) alloy was processed by severe plastic deformation (SPD) using the equal channel angular pressing (ECAP) technique at room temperature (RT). It was found that when the number of passes increased from one to four, the dis
Externí odkaz:
https://doaj.org/article/cfb2227b537544d7ad0576c0bacdce5a
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
Publikováno v:
Acta Metallurgica Slovaca, Vol 23, Iss 2 (2017)
Ultrafine grained materials are capable of superplastic elongation at strain rates faster than those currently employed for commercial superplastic forming operations. However, such operations require the material in the form of thin sheets. Asymmetr
Externí odkaz:
https://doaj.org/article/436ef87faf94434bb699f0bb9a19ea8e
Autor:
Alica Fedoriková, Tibor Kvačkaj, Róbert Kočiško, Róbert Bidulský, Patrik Petroušek, Jana Bidulská, Lucia Domovcová
Publikováno v:
Acta Metallurgica Slovaca, Vol 22, Iss 2 (2016)
This paper is focused on the evaluation of formability of heat resistant steel type 9Cr-1Mo by laboratory numerical simulation – hot compression test confirmed by laboratory hot compression test. The 9Cr-1Mo steel represents modern 9%Cr tempered ma
Externí odkaz:
https://doaj.org/article/bfa59305e5a14da88962dcda7823a70e
Autor:
Patrik Petroušek, Tibor Kvačkaj, Róbert Kočiško, Róbert Bidulský, Jana Bidulská, Alica Fedoriková, Tomáš Hlava
Publikováno v:
Acta Metallurgica Slovaca, Vol 21, Iss 3 (2015)
In this paper is evaluated workability of rolled aluminium alloy based AIMgSi. Static tension test was used for obtained the mechanical properties, such as tensile strength, yield strength, elongation, the strain hardening exponent and coefficient of
Externí odkaz:
https://doaj.org/article/f872651698b3468a861186df63d88ff5