Investigation of Tribological and Mechanical Properties of Biodegradable AZ91 Alloy Produced by Cold Chamber High Pressure Casting Method

• Autorzy: Urtekin Levent , Arslan Recep , Bozkurt Fatih , Er Ümit

Identyfikatory

DOI

10.24425/amm.2021.134777

• Języki publikacji: EN

Abstrakty

EN

In this study, AZ91 Magnesium alloy is produced by cold chamber high pressure die casting (HPDC) method. Different combinations of the cold chamber HPDC process parameters were selected as; in-mold pressure values of 1000 bar and 1200 bar, the gate speed of 30 m/s and 45 m/s, the casting temperatures of 640°C and 680°C. In addition, the test samples were produced by conventional casting method. Tensile test, hardness test, dry sliding wear test and microstructure analysis of samples were performed. The mechanical properties of the samples produced by the cold chamber HPDC and the conventional casting method were compared. Using these parameters; the casting temperature 680°C, in-mold pressure 1000 bar and the gate speed 30 m/s, the highest tensile strength and the hardness value were obtained. Since the cooling rate in the conventional casting method is slower than that of the cold chamber HPDC method, high mechanical properties are obtained by the formation of a fine-grained structure in the cold chamber HPDC method. In dry sliding wear tests, it was observed that there was a decrease in friction coefficient and less material loss with the increase of hardness values of the sample produced by the cold chamber HPDC method.

Słowa kluczowe

EN

die casting; AZ91 magnesium alloy; cold chamber high pressure casting method; mechanical properties of AZ91 magnesium alloy; wear of AZ91 alloy; tribological properties of AZ91 alloy

• 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: 2021
• Tom: Vol. 66, iss. 1
• Strony: 205--216
• Opis fizyczny: Bibliogr. 36 poz., fot., rys., tab., wykr.

Twórcy

autor

Urtekin Levent

• Ahi Evran University, Mechanical Engineering Department, 40100 Kirsehir, Turkey

autor

Arslan Recep

• Ahi Evran University, Mechanical Engineering Department, 40100 Kirsehir, Turkey

autor

Bozkurt Fatih

• Eskisehir Technical University, Vocational School of Transportation, 26470, Eskisehir, Turkey

autor

Er Ümit

• Eskisehir Osmangazi University, Mechanical Engineering Department, 26480 Eskisehir, Turkey

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Uwagi

1. The production of magnesium alloy specimens included in this study was supported by the Kirsehir Ahi Evran University BAP project number MMF. A3.17.003 and we thank you for their support.

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).