Microstructure and fluidity of sand cast ZRE1 alloy

• Autorzy: Rzychoń T. , Kiełbus A. , Szala J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The automotive use of magnesium is currently restricted to low-temperature structural components. Rare earth additions such as Ce, Nd, La and Pr are known to improve the creep performance. The aim of the research was to determine the effect of pouring temperature on the as-cast microstructure of ZRE1 magnesium alloy. Design/methodology/approach: The study was conducted on Mg-3Zn-3RE-0.5Zr (ZRE1) alloy after cast in different conditions. The microstructure was characterized by optical microscopy (Olympus GX-70) and a scanning electron microscopy (Hitachi S3400) equipped with an X-radiation detector EDS (VOYAGER of NORAN INSTRUMENTS). The phase composition of these alloys was identified by X-ray diffraction (JDX-75). A program for image analysis Met-ilo was used for determination of area fraction of intermetallic phases. Findings: The microstructure of ZRE1 alloy consists of α-Mg solid solution with Mg12RE phase. Pouring temperature has an influence on the fluidity and microstructure. Research limitations/implications: The future research will contain creep tests and microstructural investigations of cast and die-cast alloys using TEM microscopy. Practical implications: Results of investigation may be useful for preparation of sand casting technology of the Mg-Zn-RE-Zr alloys. Originality/value: This paper includes the results of microstructural investigations and effects of pouring temperature on the fluidity of ZRE1 magnesium alloy for gravity casting technology.

Słowa kluczowe

EN

metallic alloys; magnesium alloys; microstructure; fluidity

PL

stopy metaliczne; stopy magnezu; mikrostruktura; lejność

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 26, nr 2
• Strony: 135--138
• Opis fizyczny: Bibliogr. 15 poz., il., tab., wykr.

Twórcy

autor

Rzychoń T.

autor

Kiełbus A.

autor

Szala J.

• Department of Material Science, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland

Bibliografia

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