Microstructure Evolution Characteristics during Rapid Solidification of Ca-Mg Alloys with Different Mg Contents

摘要: The molecular dynamics simulation studies on the microstructure evolution properties of liquid Ca-Mg alloys during rapid solidifications have been performed. simulated structure factor S(q) Ca7Mg3 is well agreed with experimental data. Results indicate that glass transition temperatures CaMg2 and are 590 K 550 respectively cooling rate 1×1012 K/s. It also found icosahedron much easier to form in system, more Mg content higher forming ability.