Investigating the characteristics of AZ61 magnesium alloy on the hot and semi-solid compression test

The characteristics of magnesium AZ61 in semi-solid state have been investigated to understand the changes in its stress-strain in the compression process, the effects on its strain under different processing temperatures, and the consequence of the change of peak stress. First, the AZ61 magnesium alloy is heated to 660 degrees C and sustained at that temperature for 5 min. Then by natural cooling, the cooling curve is acquired. This natural cooling experiment immediately reveals the semi-solid temperature range of AZ61 magnesium alloy. On this temperature range, the study of its semi-solid characteristics and the observation of microstructure can be carried out. After that, the observed results determine the experimental conditions of semi-solid compression. The compression experiment primarily has two parts. One is to understand the changes of AZ61 magnesium alloy from normal temperature to 400 degrees C, and the other is to carry out the compression experiment of AZ61 magnesium alloy under semi-solid temperature. Upon completion of the experiment, this research explores their microstructures, and compares the structural change of AZ61 magnesium alloy in a hot chamber within the semi-solid temperature range.