AlMgSi alloys consist of aluminum with magnesium and silicon as main alloying elements. These alloys are precipitation-hardened and can, for instance after a forming process, be further strengthened by a specific heat treatment.
Low-temperature differential scanning calorimeters (LT-DSC) are usually employed for the analysis of low-melting substances, such as polymers, and particularly feature high heat-flow sensitivity. LT-DSCs are also valuable tools for studying phase transformations in metals, including precipitation formation in AlMgSi alloys. By analyzing the heat flow associated with these transformations, researchers gain insights into the microstructural evolution and its impact on the alloy's properties.
In this Application Note, we analyze and determine precipitation of AlMgSi alloys by means of differential scanning calorimetry (DSC). The NETZSCH low-temperature DSC features a highly precise measuring sensor (enthalpy precision < 1% for Indium) and allows for measurements up to 750°C, depending on the cooling system used (according to the model).
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