Study on Pressurized Solidification Behavior and Microstructure Characteristics of Squeeze Casting Magnesium Alloy AZ91D

Study on Dendritic Growth in Pressurized Solidification of Mg–Al Alloy Using Phase Field Simulation

“…Based on the nucleation model under pressure developed by Han et al and our previous experimental study on squeeze casting of AZ91 Mg alloy [40] , the dependence of nucleation rate of Mg-Al alloy on undercooling and pressure is calculated and shown in Fig. 11.…”

An Evaluation of Combustion Kinetics for the Synthesis Reaction of the Reinforcing Phase During Casting Phase During Casting

“…In these papers, FTA has been used to determine the kinetics of gray cast iron solidification in the local region. Later, the FTA method has been successfully used to characterize the solidification process for various metal alloys, such as: aluminum-based materials [10][11][12][13][14][15], magnesium alloy [16], different Pb-Sb alloys [17], and for cast-composites [18]. As it has been proven in [19], the FTA method can also be used to analyze the kinetics of thermal decomposition of resin binders intended for use in molding sands.…”

Effect of Solidification Pressure on Interfacial Heat Transfer and Solidification Structure of 19Cr14Mn0.9N High Nitrogen Steel

“…4) Until now, several kinds of pressurized metallurgy technologies have been developed to manufacture HNSs, including pressurized induction melting (PIM) and pressurized electroslag remelting (PESR) et al [11][12][13][14][15] Meanwhile, the pressure exhibits a significant impact on casting solidification and structure formation. [15][16][17] The effect of the pressurization includes (a) increasing the solidification nucleation rate, (b) reducing the critical nucleus radius, (c) accelerating the cooling rate, 18,19) (d) refining macro/micro-structure, 16,20) and (e) eliminating solidification defects (shrinkage, porosity and pore, et al). 16,17,19,[21][22][23] Although some researchers have studied the influence of pressure on the solidification structure, they mainly focus on the nonferrous metal, 19,24,25) only a few work has been carried out on HNSs.…”

“…[15][16][17] The effect of the pressurization includes (a) increasing the solidification nucleation rate, (b) reducing the critical nucleus radius, (c) accelerating the cooling rate, 18,19) (d) refining macro/micro-structure, 16,20) and (e) eliminating solidification defects (shrinkage, porosity and pore, et al). 16,17,19,[21][22][23] Although some researchers have studied the influence of pressure on the solidification structure, they mainly focus on the nonferrous metal, 19,24,25) only a few work has been carried out on HNSs. 16,19,20) Gavrilova et al 20) has proposed that a small increment of pressure (several MPa) can significantly increase heat transfer coefficient and refine the casting structure of HNSs.…”