X-ray Computed Tomography Studies on Porosity Distribution in Vacuum Induction Cast Al-7Si Alloys
نویسندگان
چکیده
Abstract Porosity in aluminum alloys is a great concern to the casting and automotive industry. In this publication, porosity formation air-melted vacuum induction melted (VIM) was studied compared understand its effect on microstructure mechanical properties of Al-7Si alloys. were cast at 700°C 900°C muffle furnace VIM furnace. Microstructural results show that refined eutectic silicon with samples prepared X-ray computed tomography (XCT) used for three-dimensional (3D) visualization quantification these The volume fraction pores observed be higher alloy 700°C. XCT from showed no significant when either or 900°C. morphology large represents shrinkage due incomplete flow molten metal during solidification. Tensile test elongation property increased by more than 20% alloy. tensile strength both findings microstructure, XCT, tests melting improves
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ژورنال
عنوان ژورنال: JOM
سال: 2021
ISSN: ['1543-1851', '1047-4838']
DOI: https://doi.org/10.1007/s11837-021-04944-z