【摘 要】
：
By a simple phase field model, a series of numerical simulations of solidification microstructure was performed to show a rich variety of dendritic patterns. At
【机 构】
：
Research Studio of Solidification Simulation
论文部分内容阅读
By a simple phase field model, a series of numerical simulations of solidification microstructure was performed to show a rich variety of dendritic patterns. At the same time, the relation between the morphology of grain growth and some parameters including the strength of anisotropy, dimensionless latent heat and the size of initial solid zone was studied. It is for the first time that patterns of grain growth were associated with the size of initial solid zone,which is an interesting issue. The possible reason for this may be that variation in the size of initial solid zone may bring about fluctuation of the interface energy, making the interface unstable.
其他文献
Extraction of the Ligusticum Chuanxiong oil with supercritical CO2 (SC-CO2) was investigated at the temperatures ranging from 55℃ to 70℃ and pressure from 25
Network-induced delay and jitter are key factors causing performance degradation and instability of NCSs (networked control systems). The relationships between
The CCT curves of supercooled austenite were investigated by using THERMECMASTOR-Z simulation machine, test samples refined from 50 kg vacuum induction furnace
Si3 N4/TiC nanocomposite ceramics have been fabricated by hot pressing technique with Al2O3 and Y2O3 as additives.The results showed that well dispersed composi
The structure and disorder-order transformation of NdxFe60.5-xPt39.5(x = 0, 0.5, 1.0, 1.5) alloys were investigated in situ by high temperature X-ray diffractio
In order to improve the quality of the bio-active coating on medical grade CoNiCrMo substrate, hydroxyapatite(HA) coatings were produced via low-temperature dip
TiO2/SiO2 aerogels with different molar ratio of SiO2/TiO2 were prepared via non-supercritical method using tetrabutyl titanate and silica sols as raw materials
Mobile robot global path planning in a static environment is an important problem. The paper proposes a method of global path planning based on neural network a
After the investigation on partial remelting of thixotropic magnesium serial alloys (ZK60) by near non-equilibrium liquidus casting (NNLC), the primary solid gr
Superplasticity of as-rolled ZK60 magnesium alloy sheets, with the average grain size of 8.2μm, was investigated at a strain rate of 5.56×10-4-5.56×10-2 s-1