Abstract
Recently, the utilization of magnesium (Mg) alloys for structural applications in manufactures, especially in the automobile industries, has been increased rapidly. Processing Mg alloys in molten state is often necessary for the refining and recycling, and for the casting to achieve the net shape forming. The quality of molten Mg is frequently and critically associated with inclusions of intermetallic and/or non-metallic materials within the molten Mg during manufacturing steps [1, 2]. The presence of these inclusions affects the mechanical properties of metals and results in deterioration of product quality. The particle sizes can vary from less than 1 µm to greater than 100µm [2]. Ideally, evaluation of cleanliness of molten metals is preferred to be conducted in large quantities, which can be swiftly analyzed with little or no sample preparation. This may be achieved by analyzing the metal while it is still in the molten state. However, little sensors and techniques have been reported due to harsh conditions such as high temperature, corrosiveness, flammability and opaqueness of molten Mg.
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Ono, Y., Moisan, JF., Jen, CK. (2004). Ultrasonic Techniques for Imaging and Measurements in Molten Magnesium Using Clad Buffer Rods. In: Arnold, W., Hirsekorn, S. (eds) Acoustical Imaging. Acoustical Imaging, vol 27. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2402-3_19
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DOI: https://doi.org/10.1007/978-1-4020-2402-3_19
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