Microstructural characterization and mechanical properties of Mg-xSn-Al-Zn alloys

• Autorzy: Kim B. , Jeon J. , Park K. , Park B. , Park Y. , Park I.
• Języki publikacji: EN

Abstrakty

EN

Purpose: In this study, the microstructure and mechanical properties of as-cast Mg-xSn-Al-Zn alloys were investigated. Design/methodology/approach: Ingot was fabricated by a squeeze cast. The alloys were induction melted at 750stopniC in a mild steel crucible under CO2+2%SF6 mixed gas atmosphere and cast into a permanent mould coated with boron nitride spray held at approximately 350 stopniC . Tensile tests were carried out at room temperature in a screw-driven tensile testing machine and crosshead speed was 0.2 mm/min. Microstructural observation was carried out using a optical microscope (OM) and a scanning electron microscope (SEM) equipped with energy dispersive X-ray spectrometer (EDS). Findings: It is found that the tensile strength and elongation decreased at room temperature increased with Sn concentration. As a consequence, 5wt% Sn addition was the one exhibiting the best tensile properties at room temperature. The micro-hardness of the alloy continuously increased with increasing the Sn concentration. Practical implications: The investigations of microstructure of commercially magnesium alloys are important for achieving desired mechanical behaviour of the material. Originality/value: The fracture behaviors of magnesium alloys are investigated.

Słowa kluczowe

EN

mechanical properties; precipitation hardening; TAZ

PL

właściwości mechaniczne; umacnianie wydzielinowe; TAZ

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2008
• Tom: Vol. 30, nr 2
• Strony: 93--96
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Kim B.

autor

Jeon J.

autor

Park K.

autor

Park B.

autor

Park Y.

autor

Park I.

• Department of Material Science and Engineering, Pusan National University San 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Korea,

Bibliografia

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