microsegregation相关论文
利用激光快速熔凝技术对DD2单晶合金在超高温度梯度和快速凝固条件下的组织形态和元素的微观偏析行为进行了研究。实验结果表明激......
Effect of melting rate on microsegregation and primary MC carbides in M2 high-speed steel during ele
Large-size primary MC carbides can significantly reduce the performance of M2 high-speed steel. To better control the mo......
Revisiting dynamics and models of microsegregation during polycrystalline solidification of binary a
Microsegregation formed during solidification is of great importance to material properties.The conventional Lever rule ......
The evolution of microstructures during the solidification of 20SiMn steel was investigated. The dominant role of coa-le......
Formation and Thermal Stability of Large Precipitates and Oxides in Titanium and Niobium Microalloye
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Numerical Simulation of Morphology and Microsegregation Evolution during Solidification of Al-Si All
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Microstructure evolution and mechanical properties of homogenizing treated fully lamellar Ti-46Al-0.
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Nature of large (Ti, Nb)(C, N) particles precipitated during the solidification of Ti, Nb HSLA steel
To investigate the microsegregation phenomena and complex (Ti, Nb)(C, N) precipitation behavior during continuous castin......
Homogenization treatment of high Nb containing TiAl alloys with as-cast and as-forged microstructure
The effect of heat treatment on the microsructure evolution of a high Nb containing TiAl alloy has been studied.The resu......
The microstructure and composition of the residual liquid at different temperatures were investigated by scanning electr......
A numerical model Alloy/M has been applied to investigate the microsegregation in Al-4.45 wt pct Cu alloy. The calculate......
Influence of coupling with calculation of phase diagrams on microsegregation forming simulation of A
The effect of coupling with calculation of phase diagrams on microsegregation forming simulation was investigated. The t......
Modified cellular automaton model for modeling of microstructure and microsegregation in solidificat
A modified cellular automaton (MCA) model has been extended to the ternary alloy system by coupling thermodynamic and ph......
Numerical simulation of recalescence of 3-dimensional isothermal solidification for binary alloy usi
A accelerated arithmetic algorithm of the dynamic computing regions was designed, and 3-dimensional numerical simulation......
In the modeling of microsegregation, the partition coefficient is usually calculated using data from the equilibrium pha......
Phase-field model was employed to quantitatively study the effect of convection on pattern selection and growth rate of ......
Numerical Simulation of Morphology and Microsegregation Evolution during Solidification of Al-Si All
A stochastic model coupled with transient calculations for the distributions of temperature, solute and velocity during ......
研究显微偏析数值模拟中的微观模型和数值方法,在微观模型中考虑了树枝晶粗化、固相溶质逆扩散、枝晶尖端过冷、随温度变化的溶质......
利用SEM和EDS研究了在冷速分别为1，3和6K·min^-1时高温合金IN718的凝固组织、液体中Nb和Mo含量变化，并计算了液体密度差和相对R......
A numerical model Alloy/M has been applied to investigate the microsegregation in Al-4.45 wt pct Cu alloy. The calculate......
Numerical Simulation of Microstructure and Microsegregation in Ni-Cu Alloy under Isothermal Conditio
没有明确地追踪复杂阶段边界，阶段地方法能被用来描述树突生长的复杂形态学。树突生长上的起始的温度和起始的集中的影响被使用联合......
论述了在显微偏析数值模拟研究中宏/微观模型的耦合数值方法和显微偏析模型与相图计算耦合的数值方法.宏/微观模型以潜热的处理为......
基于典型微观控制单元体（通常指二次枝晶臂间距半长）内的溶质质量守恒关系，建立了适用于枝品凝固方式的二元共晶／包晶合金微观偏析半解......
凝固过程微观数值模拟是目前材料学科研究的一个热点,其中显微偏析数值模拟具有重要的指导意义,国内在此研究方向上尚处于起步阶段......
微观偏析数值模拟是材料成形过程数值模拟研究的一个重要分支.论述了微观偏析数值模拟研究的重要性和研究进展,分析了晶粒域微观偏......
根据钢液凝固时元素的固-液界面的偏析，并结合溶质元素在固、液相中的有限扩散，建立了钢液凝固过程中微观偏析和钛氧夹杂生成的耦合......
提出一个改进的计算固相分数的模型，利用该模型及元胞自动机方法根据相图计算将固／液界面区域内固相分数表示为一个一元二次方程，不需......
以AZ91D合金为例，模拟研究镁合金凝固时的溶质分布情况，着重定量分析过冷度ΔT对枝晶尖端前沿最高溶质浓度、枝晶干轴对称中心溶质浓......
总结比较了多种微观偏析模型,并针对反向凝固工艺实验研究的传热传质现象进行了数值模拟.讨论分析了溶质的重新分布对宏观凝固传输......
针对二元合金凝固的微观偏析现象建立一维平面枝晶模型,考虑溶质在固相中有限扩散,液相完全扩散的情况.通过模拟计算,比较分析了Al......
显微偏析现象对于合金是非常重要的，因为它在很大程度上影响着合金的性能和后续加工，对它的数值模拟研究已受到许多研究者的关注，本文......
针对反向凝固工艺实验研究的传热传质现象，进行了数值模拟，讨论分析了微界面质扩散过程对二元合金凝固过程数值模拟的影响。结合实验......
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基于典型微观控制单元体（通常指二次枝晶臂间距半长）内的溶质质量守恒关系,建立了适用于枝晶凝固方式的二元共晶/包晶合金微观偏析半......
在显微偏析数值模拟中,宏/微观模型通过潜热处理相互耦合.潜热模型直接决定着模拟结果的准确性.将近期先进的潜热处理模型引入显微......
研究了新型晶粒细化剂对K4169高温合金枝晶组织、元素显微偏析和合金相的影响. 实验结果表明:在同一浇注温度下,细晶铸造试样的一......
The squeeze casting of a 2024 Al alloy was carried out to investigate the effect on microsegregation in the alloy of the......
Development of gas tungsten arc welding using current pulsing technique to preclude chromium carbide
Weldments were produced using gas tungsten arc welding(GTAW)and pulsed current gas tungsten arc welding(PCGTAW)technique......
