Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Jan Džugan"'
Autor:
Matěj Rott, Ying Li, Martina Koukolíková, Martina Šípová, Pavel Salvetr, Zbyšek Nový, Gerhard Wolf, Jan Džugan
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract This work deals with the fabrication of one low density steel by mixing AISI S2 tool steel and AlSi10Mg powders using powder-based directed energy deposition (P-DED) technique. Two approaches of mixing powders were compared-continuous mixing
Externí odkaz:
https://doaj.org/article/f58bfd426d2940949cd2ddb04c8959d6
Autor:
Pavel Konopík, Tomasz Bucki, Sylwia Rzepa, Daniel Melzer, Dana Bolibruchová, Ying Li, Jan Džugan
Publikováno v:
Materials, Vol 17, Iss 18, p 4474 (2024)
The AZ91 magnesium alloy was subjected to a complex treatment involving age hardening (supersaturation and artificial aging) and simultaneous surface layer modification. The specimens were supersaturated in contact with a mixture containing varying c
Externí odkaz:
https://doaj.org/article/a76d5b486fb141e1baaf871479fa5c18
Autor:
Ying Li, Pavel Podaný, Martina Koukolíková, Jan Džugan, Tomáš Krajňák, Jozef Veselý, Srinivasan Raghavan
Publikováno v:
Materials, Vol 16, Iss 4, p 1377 (2023)
The creep properties of a laser-directed energy deposition (L-DED) technique manufactured Inconel 718 (IN718) was investigated at 650 °C/700 MPa. Microstructure and creep properties of L-DED IN718 samples were tailored by various post heat treatment
Externí odkaz:
https://doaj.org/article/b0dac58b2fb2463fba0bae731894dce8
Autor:
Martin Nesládek, Josef Jurenka, Michal Bartošák, Milan Růžička, Maxim Lutovinov, Jan Papuga, Radek Procházka, Jan Džugan, Petr Měšťánek
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 20, Iss 0, Pp 56-64 (2018)
Increasing demands on the flexibility of steam turbines due to the use of renewable energy sources substantially alters the fatigue strength requirements of components of these devices. Rapid start-ups as well as the increased number of the load cycl
Externí odkaz:
https://doaj.org/article/180b86b6454644bcabefae0660078521
Autor:
Kristýna Halmešová, Radek Procházka, Martina Koukolíková, Jan Džugan, Pavel Konopík, Tomasz Bucki
Publikováno v:
Materials, Vol 15, Iss 9, p 3076 (2022)
Continuous cooling transformation (CCT) diagrams are widely used when heat treating steels and represent which type of phase will occur in a material as it is cooled at different cooling rates. CCT diagrams are constructed on the basis of dilatometry
Externí odkaz:
https://doaj.org/article/61624c3a8c5f408d9618b0d089211c52
Publikováno v:
Materials, Vol 15, Iss 5, p 1838 (2022)
The study aims to compare mechanical properties of polymer and metal honeycomb lattice structures between a computational model and an experiment. Specimens with regular honeycomb lattice structures made of Stratasys Vero PureWhite polymer were produ
Externí odkaz:
https://doaj.org/article/eb463b7412eb49cfbbe2bb0e30d139da
Publikováno v:
Materials, Vol 15, Iss 7, p 2545 (2022)
The advancement in additive manufacturing encourages the development of simplified tools for deep and swift research of the technology. Several approaches were developed to reduce the complexity of multi-track modeling for additive manufacturing. In
Externí odkaz:
https://doaj.org/article/f5e4bd3735304161b0f2b9caa4c5303b
Autor:
Miroslav Urbánek, Josef Hodek, Daniel Melzer, Martina Koukolíková, Antonín Prantl, Jaroslav Vavřík, Michal Brázda, Petr Martínek, Sylwia Rzepa, Jan Džugan
Publikováno v:
Materials, Vol 15, Iss 3, p 806 (2022)
Additive manufacturing (AM) becomes a more and more standard process in different fields of industry. There is still only limited knowledge of the relationship between measured material data and the overall behaviour of directed energy deposition (DE
Externí odkaz:
https://doaj.org/article/1fad6c1edba24e6abc957f6276c6cfc0
Publikováno v:
Materials, Vol 14, Iss 18, p 5129 (2021)
The microstructural morphology in additive manufacturing (AM) has a significant influence on the building structure. High-energy concentric heat source scanning leads to rapid heating and cooling during material deposition. This results in a unique m
Externí odkaz:
https://doaj.org/article/00c04a3f45664bebafd68682c7f69d90
Publikováno v:
Materials, Vol 13, Iss 22, p 5167 (2020)
Additive manufacturing technologies allow producing a regular three-dimensional mesh of interconnected struts that form an open-cell porous structure. Regular porous structures have been used in the orthopedic industry due to outstanding bone anchori
Externí odkaz:
https://doaj.org/article/c68c60eb48224d1e928093facb5c816a