Autor: Palcek, P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Changes in hardness of magnesium alloys due to precipitation hardening
Autorzy:: Oršulová, T.
Palček, P.
Powiązania:: https://bibliotekanauki.pl/articles/111838.pdf
Data publikacji:: 2018
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: magnesium alloy
precipitation
changes in hardness
heat treatment
stopy magnezu
utwardzanie wydzieleniowe
obróbka cieplna
pomiar twardości
Opis:: This paper deals with the evaluation of changes in hardness of magnesium alloys during precipitation hardening that are nowadays widely used in different fields of industry. It focuses exactly on AZ31, AZ61 and AZ91 alloys. Observing material hardness changes serves as an effective tool for determining precipitation hardening parameters, such as temperature and time. Brinell hardness measurement was chosen based on experimental needs. There was also necessary to make chemical composition analysis and to observe the microstructures of tested materials. The obtained results are presented and discussed in this paper.
Źródło:: Production Engineering Archives; 2018, 18; 46-49
2353-5156
2353-7779
Pojawia się w:: Production Engineering Archives
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Analysis of the Properties of EN AC 51200 Aluminum Alloy
Autorzy:: Uhríčik, M.
Palček, P.
Chalupová, M.
Hanusová, P.
Kuchariková, L.
Powiązania:: https://bibliotekanauki.pl/articles/356674.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: aluminum alloy
Al-Mg cast alloy
three-point bending loading
fatigue
fracture surface
Opis:: The article will be focused on analysis of properties of aluminum alloy for the casting of type Al-Mg. As an experimental material was used aluminum alloy EN AC 51200, supplied in a cast state without a heat treatment. It was produced by the continuous casting method. Experiments deal with microstructural material analysis, fractographic analysis, mechanical and fatigue tests. The microstructure of the testing sample was examined using an optical microscope Neophot 32. Fatigue properties of aluminum alloy was tested by three-point bending cyclic loading. The fracture surface of the testing sample was examined using scanning electron microscopy (SEM), where sample was observed on various stages of the fatigue process, its characteristics and differences of fracture surfaces.
Źródło:: Archives of Metallurgy and Materials; 2020, 65, 4; 1437-1445
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The Influence of the Structure on the Fatigue Properties of Al-Mg Cast Alloy
Autorzy:: Uhríčik, M.
Palček, P.
Chalupová, M.
Oravcová, M.
Frkáň, M.
Powiązania:: https://bibliotekanauki.pl/articles/352607.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Al-Mg cast alloy
three-point bending loading
fatigue property
fracture surface
structure
Opis:: The article will be focused on monitoring the influence of the structure on the fatigue properties of aluminium alloys for the casting of type Al-Mg. As an experimental material were used aluminium alloys EN AC 51200 and EN AC 51500, supplied in a cast state without a heat treatment. They were produced by the continuous casting method. These alloys were selected on the basis of the chemical composition, where the content of most alloying elements is comparable, only in the case of the concentration of magnesium are these alloys significantly different. Fatigue properties of aluminium alloys were tested by three-point bending cyclic loading. The fracture surface of the testing sample was examined using scanning electron microscopy (SEM), where samples were observed on various stages of the fatigue process, their characteristics and differences of fracture surfaces.
Źródło:: Archives of Metallurgy and Materials; 2017, 62, 3; 1615-1624
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Superplastic Behaviour of an Extruded AZ91 Alloy
Autorzy:: Trojanová, Z.
Turba, K.
Száraz, Z.
Ryspaev, T.
Palček, P.
Chalupová, M.
Powiązania:: https://bibliotekanauki.pl/articles/1419006.pdf
Data publikacji:: 2012-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.05.Bx
62.20.fq
Opis:: Plastic deformation of extruded AZ91 magnesium alloy was investigated at various strain rates and in a temperature range of 360-420°C. Samples exhibiting superplastic behaviour were prepared with different thermo-mechanical treatments. Microstructure of samples was observed by light and scanning electron microscopy. The strain rate sensitivity parameter m has been estimated by the abrupt strain rate change method. Possible physical mechanisms of the superplastic flow are discussed.
Źródło:: Acta Physica Polonica A; 2012, 122, 3; 597-600
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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