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首页> 外文会议>7th International Conference on Electromagnetic Processing of Materials >Modeling of orientation and alignment of primary Al3Ni crystal in Al-Ni alloy by imposing a high magnetic field
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Modeling of orientation and alignment of primary Al3Ni crystal in Al-Ni alloy by imposing a high magnetic field

机译：施加强磁场对Al-Ni合金中初生Al3Ni晶体的取向和取向建模

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摘要

Regarding Al3Ni crystal as a rigid ellipsoid,a model describing the orientation and alignment of a primary paramagnetic Al3Ni crystal in Al–Ni alloy solidification under a high magnetic field is developed.The model is based on rigid body rotation dynamics model as well as the magnetic dipole model,respectively.It describes the rotational motion of a magnetic anisotropic crystal around its centroid and around one endpoint of its crystal axis.The orientation time and the orientation characteristics with the intensity of magnetic field,the aspect ratio of the crystal and the effective viscosity of the melt,as well as the crystal growth,are deeply discussed for single grain.Furthermore,the interaction between two crystals during the alignment in high magnetic field are analyzed based on the magnetic dipole model,in which the final state of the grain is dependent on the attractive interaction force between two neighboring grains and the magnetization force acting on each grain.The prediction shows fitness with the experimental and theoretical results in literature.
机译：以Al3Ni晶体为刚性椭球体，建立了描述高磁场下Al-Ni合金凝固过程中顺磁性Al3Ni初生晶体取向和排列的模型。该模型基于刚体旋转动力学模型和磁场分别描述了磁各向异性晶体绕其质心和绕其晶体轴的一个端点的旋转运动。取向时间和取向特性随磁场强度，晶体的长宽比和有效对单晶粒熔体的粘度以及晶体的生长进行了深入的讨论。此外，基于磁偶极子模型，分析了在强磁场下取向过程中两个晶体之间的相互作用，其中晶粒的最终状态取决于两个相邻晶粒之间的吸引力相互作用力以及作用在每个晶粒上的磁化力。 n显示与文献中的实验和理论结果相符。

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