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Wyszukujesz frazę "Pantilimon, Mircea Cristian" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Preliminary Structures Assessment of Some TRIP Steels
Autorzy:
Pantilimon, Mircea Cristian
Berbecaru, Andrei-Constantin
Coman, George
Sohaciu, Mirela G.
Dumitrescu, Ruxandra Elena
Ciucă, Sorin
Gherghescu, Ioana-Arina
Predescu, Cristian
Powiązania:
https://bibliotekanauki.pl/articles/27313868.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
TRIP steel
optical microscopy
Vickers hardness
retained austenite
car body material
Opis:
Automotive industry is constantly interested in building cars made of light and high strength parts in order to reduce the emission levels, the fuel consumption and minimize the effects of a car crash. Some parts may be made of lighter materials, but the steel ones must compensate the strength needed for the car body. Research is made for finding new materials showing high strength combined with high ductility. Among them, transformation - induced - plasticity steels are of great interest, efforts being made to improve their characteristics. A new composition of such a steel is presented, its features being compared with those of three other steels of the same class and category. Optical microscopy at different magnifications is performed, together with Vickers hardness test. Structural particularities are found for each tested steel, justified by their own chemical compositions. The new steel reveals important characteristics: besides the mainly bainitic structure, it has both larger ferritic areas and amounts of retained austenite, making him proper for further study.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 2; 491--498
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photocatalytic TiO2 Nanostructures Developed on the Grade 2 Ti Material
Autorzy:
Tarcea, Claudia I.
Pantilimon, Cristian Mircea
Coman, George
Turcanu, Andreea A.
Predescu, Andra Mihaela
Matei, Ecaterina
Berbecaru, Andrei-Constantin
Predescu, Cristian
Powiązania:
https://bibliotekanauki.pl/articles/2134103.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Ti material
nanostructures
photocatalytic activity
alkaline treatment
advanced oxidation
Opis:
The research focused on TiO2 nanostructures environmental applications due to the special characteristics that displayed degradation of the organic compounds into environmentally friendly products through exposure to UV light. The protocol behind obtaining the nanostructures involved the use of a Ti material exposed to alkaline treatment and advanced oxidation using NaOH solution and acetone. These studied nanostructures were analyzed extensively by using methods such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) for characterizing the elements, compounds and morphological properties of the material. These differences in morphology is attributed to different NaOH solution concentrations. The Ti sheets were immersed into NaOH and acetone mixed solutions for 72 hours. The best results were recorded by using 30% NaOH solution. After obtaining the 3D structures, which improve specific surface and contact area with the environment, the samples were tested under UV light in order to degrade methylene blue in order to determine their photocatalytic performance.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 3; 1079--1084
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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