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.

Identyfikatory

DOI

10.1515/afe-2016-0063

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

alloy Al-Si; intermetallic phase; cooling rate; silicon crystal

PL

stop Al-Si; faza międzymetaliczna; szybkość chłodzenia; kryształy krzemu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 3
• Strony: 125--128
• Opis fizyczny: Bibliogr. 14 poz., il., tab.

Twórcy

autor

Tupaj M.

• Rzeszow University of Technology, Department of Casting and Welding, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

autor

Orłowicz A. W.

• Rzeszow University of Technology, Department of Casting and Welding, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

autor

Mróz M.

• Rzeszow University of Technology, Department of Casting and Welding, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

autor

Trytek A.

• Rzeszow University of Technology, Department of Casting and Welding, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

autor

Markowska O.

• Rzeszow University of Technology, Department of Casting and Welding, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

Bibliografia

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• [7] Pucella, G., Samuel, A.M. & Samuel F.H. (1999). Sludge formation in Sr modified Al-11.5 wt% Si die casting alloys. AFS Transactions. 107, 117-125.
• [8] Murali, S., Raman, K.S. & Murthy, K.S.S. (1995). The formation of β-FeSiAl5 and Be-Fe phases in Al-7Si-0.3Mg alloy containing Be. Materials Science and Engineering A. 190, 165-172.
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• [11] Warmuzek, M., Sęk-Sas, G. & Lech, Z. (2002). Microstructure evolution in presence of the transition metals (Fe, Mn, and Cr) in the Al-Si alloys. Biuletyn Instytutu Odlewnictwa. 6, 4-11. (in Polish).
• [12] Ahmad, R. & Marshall, R.I. (2003). Effect of superheating on iron-rich plate-type compounds in aluminium-silicon alloys. Int. J. of Cast Metals Res. 15, 497-504.
• [13] Narayanan, L.A., Samuel, F.H. & Gruzleski, J E. (1994). The crystallization behavior of iron – containing intermetallic compounds in 319 aluminum alloys. Metallurgical and Materials Transactions A. 25 A, 1761-1773.
• [14] Tupaj, M., Orłowicz, W., Mróz, M. & Trytek, A. (2015). Materials Properties of Iron-rich Intermetallic Phase in a Multicomponent Aluminium-Silicon Alloy. Archives of Foundry Engineering. 15(1), 111-114.

Uwagi

PL

Opracowane ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.