Temat: process method - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Influence of Extrusion Process on the Microstructure and Mechanical Properties of Magnesium Alloys
Autorzy:: Bednarczyk, I.
Kuc, D.
Tomaszewska, A.
Mrugała, A.
Powiązania:: https://bibliotekanauki.pl/articles/958196.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: magnesium alloys
microstructure
mechanical properties
process of extrusion method KOBO
Opis:: The article presents the results of plastic shaping tests of AZ61 and WE43 alloys. There were both classic extrusion tests as well as extrusion tests of KOBO method. An assessment was made of the influence of extrusion process parameters on the mechanical properties and the structure of the alloys. On the basis of achieved results of mechanical properties for alloys AZ31 and WE43 the susceptibility of those alloys to plastic shaping was determined. Quantitative tests of structure assessment in case of alloys AZ61 and WE43 after extrusion with the use of KOBO method were conducted with the use of METILO program. It has been shown that extrusion AZ61,WE43 alloys method KOBO leads to considerable fragmentation of grains.
Źródło:: Archives of Metallurgy and Materials; 2017, 62, 2A; 545-550
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Nickel in Compacted Graphite Iron
Autorzy:: Gumienny, G.
Kurowska, B.
Szymczak, T.
Gawroński, J.
Powiązania:: https://bibliotekanauki.pl/articles/352803.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: compacted graphite iron
crystallization process
DTA method
Opis:: The paper presents results of the research work concerning effects of nickel concentration on the crystallization process, microstructure and selected properties of the compacted graphite iron. Compacted graphite in the cast iron was obtained with use of the Inmold process. The study has comprised the cast iron containing nickel up to concentration providing obtainment of austenitic microstructure of the matrix. The effect of the nickel on temperature of the eutectic crystallization was specified. It has been presented composition of the cast iron matrix in function of nickel concentration in a casting with wall thickness of 3 mm and 24 mm. Moreover, it has been presented conditions defining the possibility of obtaining an austenitic and martensitic compacted graphite iron. Effect of the nickel on hardness of the cast iron was described.
Źródło:: Archives of Metallurgy and Materials; 2017, 62, 2A; 657-662
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Controlling the State of Residual Stresses in Railway Rails by Modifying Pass Design of Straightening Rollers
Autorzy:: Żak, Sylwester
Woźniak, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/2203704.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: railway rail
residual stresses
straightening process
straightening rollers
strain gauge method
Opis:: The paper presents a summary of research on the possibility of influencing the state of residual stresses in railway rails by changing the pass design of vertical and horizontal straightener rollers and optimising their distribution on the rail perimeter. The presented results are devoted to the influence of profiled rollers on the level of residual stresses. A wide range of theoretical considerations were carried out based on the use of the finite element method using the commercial Forge software package. In order to verify the results of the theoretical considerations most reliably, a series of “in situ” experiments were conducted in industrial conditions on an existing production line. The tests were carried out on 120 meters long 60E1 railway rails. A significant reduction in the level of residual stresses compared to the standard requirements was achieved.
Źródło:: Archives of Metallurgy and Materials; 2023, 68, 1; 57--70
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

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