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Wyświetlanie 1-3 z 3
Tytuł:
Combustion Engine Cylinder Liners Made of Al-Si Alloys
Autorzy:
Orłowicz, A. W.
Tupaj, M.
Mróz, M.
Trytek, A.
Powiązania:
https://bibliotekanauki.pl/articles/382953.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
combustion engine
cylinder liner
Al-Si alloy
silnik spalinowy
tuleja cylindrowa
stop Al-Si
Opis:
The paper deals with problems related to application of aluminum-silicon alloys for combustion engine cylinder liners.
Źródło:
Archives of Foundry Engineering; 2015, 15, 2; 71-74
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of Al-Si Alloy Fatigue Strength by Means of Refining and Modification
Autorzy:
Tupaj, M.
Orłowicz, A. W.
Trytek, A.
Mróz, M.
Powiązania:
https://bibliotekanauki.pl/articles/379844.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Al-Si alloy
fatigue limit
refining
modification
stop Al-Si
granica zmęczenia
rafinacja
modyfikacja
Opis:
The paper presents results of a study concerning an AlSi7Mg alloy and the effect of subjecting the liquid metal to four different processes: conventional refining with hexachloroethane; the same refining followed by modification with titanium, boron, and sodium; refining by purging with argon carried out in parallel with modification with titanium and boron salts and strontium; and parallel refining with argon and modification with titanium, boron, and sodium salts. The effect of these four processes on compactness of the material, parameters of microstructure, and fatigue strength of AlSi7Mg alloy after heat treatment. It has been found that the highest compactness (the lowest porosity ratio value) and the most favorable values of the examined parameters of microstructure were demonstrated by the alloy obtained with the use of the process including parallel purging with argon and modification with salts of titanium, boron, and sodium. It has been found that in the fatigue cracking process observed in all the four variants of the liquid metal treatment, the crucial role in initiation of fatigue cracks was played by porosity. Application of the process consisting in refining by purging with argon parallel to modification with Ti, B, and Na salts allowed to refine the microstructure and reduce significantly porosity of the alloy extending thus the time of initiation and propagation of fatigue cracks. The ultimate effect consisted in a distinct increase of the fatigue limit value.
Źródło:
Archives of Foundry Engineering; 2019, 4; 61-66
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Cooling Rate on Properties of Intermetallic Phase in a Complex Al-Si Alloy
Autorzy:
Tupaj, M.
Orłowicz, A. W.
Mróz, M.
Trytek, A.
Markowska, O.
Powiązania:
https://bibliotekanauki.pl/articles/380384.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alloy Al-Si
intermetallic phase
cooling rate
silicon crystals
stop Al-Si
faza międzymetaliczna
szybkość chłodzenia
kryształy krzemu
Opis:
The cooling rate is one of the main tools available to the process engineer by means of which it is possible to influence the crystallisation process. Imposing a desired microstructure on a casting as early as in the casting solidification phase widens significantly the scope of technological options at disposal in the process of aluminium-silicon alloy parts design and application. By changing the cooling rate it is possible to influence the course of the crystallisation process and thus also the material properties of individual microstructure components. In the study reported in this paper it has been found that the increase of cooling rate within the range of solidification temperatures of a complex aluminium-silicon alloy resulted in a decrease of values of the instrumented indentation hardness (HIT) and the instrumented indentation elastic modulus (EIT) characterising the intermetallic phase occurring in the form of polygons, rich in aluminium, iron, silicon, manganese, and chromium, containing also copper, nickel, and vanadium. Increased cooling rate resulted in supersaturation of the matrix with alloying elements.
Źródło:
Archives of Foundry Engineering; 2016, 16, 3; 125-128
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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