Effect of Titanium Addition on the Pro-Eutectic and Eutectic Phases of AlSi9 Cast Alloy

• Autorzy: Ait El Haj Badiâ , Bouayad Aboubakr , Alami Mohammed

Identyfikatory

DOI

10.24425/amm.2020.131741

• Języki publikacji: EN

Abstrakty

EN

In this study, the effects of grain size refiner addition and various pre-heating mold temperatures on AlSi9 cast alloy microstructure and solidification have been evaluated. For different process conditions, thermal analysis was performed for all samples and cooling curves were established. Important parameters in liquidus and eutectic Si-phase regions have been calculated usingthe first derivative cooling curves. Secondary Dendrite Arm Spacing (SDAS) variation was also determined. Experimental results question the effectiveness of cooling curve parameters in providing the microstructure data as a function of refinement. The present work shows that the effect of grain refiner addition on the value of SDAS was higher when the solidification time was lower. It indicated that the solidification parameters such as nucleation temperatures of α-Al phase, undercooling temperature and total solidification time were affected by grain refinement. It has been found that the addition of grain refiner affect the eutectic phase formation time. However, it has no effect on the eutectic phase morphology.

Słowa kluczowe

EN

AlSi9 cast alloy; grain refinement; thermal analysis; eutectic phase; Secondary Dendrite Arm Spacing; SDAS

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 1
• Strony: 385--391
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wzory

Twórcy

autor

Ait El Haj Badiâ

• Moulay Ismaïl University (UMI), Ecole Nationale Supérieure d’Arts Et Métiers (ENSAM), Laboratoire des Sciences et Métiers de l’Ingénieur, BP 15290 El Man-Sour, Meknes, Morocco

autor

Bouayad Aboubakr

• Moulay Ismaïl University (UMI), Ecole Nationale Supérieure d’Arts Et Métiers (ENSAM), Laboratoire des Sciences et Métiers de l’Ingénieur, BP 15290 El Man-Sour, Meknes, Morocco

autor

Alami Mohammed

• Moulay Ismaïl University (UMI), Ecole Nationale Supérieure d’Arts Et Métiers (ENSAM), Laboratoire des Sciences et Métiers de l’Ingénieur, BP 15290 El Man-Sour, Meknes, Morocco

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).