Research progress in effect of static magnetic field on microstructure of directionally solidified Ni-based superalloy

Abstract

The current research progress in the influence of static magnetic field on the microstructures of directionally solidified Ni-based superalloy at home and abroad was reviewed, and the effect of different ways, strength of static magnetic fields on the dendritic microstructure, elemental segregation, solidification defects and high temperature mechanical properties was emphatically analyzed. The potential development of static magnetic field in directional solidification of nickel-based superalloy was proposed from the control of stray crystals at variable cross-sections, the control of crystal orientation deviation, and the influence mechanism of static magnetic field on solidification properties.

Keywords

• ni-based superalloy
• static magnetic field
• dendritic microstructure
• solidification defect