Fig. 1

Schematic diagram of directional solidification process"

Fig. 2

LMSC directional solidification furnace"

Fig. 3

Microstructures near melt-back interface for superalloy with and without an 8 T magnetic field[28]"

Fig. 4

Microstructures near the solid-liquid interface for superalloy with and without a 12 T magnetic field[29]"

Fig. 5

Transverse microstructures of superalloy PWA1483 and CMSX-4 without and with a 5 T magnetic field"

Fig. 6

Morphologies of the $\gamma^{\prime}$ phase in the dendrite core of superalloy PWA1483 and CMSX-4 without and with a 5 T magnetic field[30]"

Fig. 7

Segregation coefficients of alloy elements in the superalloy PWA1483 and CMSX-4 samples produced without and with a 5 T magnetic field"

Fig. 8

Variation of the Vickers hardness of DZ483 with the SMF intensity[32]"

Fig. 9

Dependence of size and volume fraction of $\gamma^{\prime} $ phase on the time of ageing treatment with and without magnetic field[33]"

Table 1

Tensile properties of DZ483 samples heat treated with and without the SMF of 12 T[32]"

Fig. 10

Segregation coefficients of alloying elements in the DZ483 superalloy after solution treatment with and without AMF[34]"

Fig. 11

Microporosity distribution of the cast sample and solution heat treatment sample[35]"

Fig. 12

Morphologies of $\gamma^{\prime} $ precipitate of cast sample and heat treatment samples with various alternating magnetic fields"

Fig. 13

Creep curves of heat treatment samples without and with a 0.06 T alternating magnetic field at 980 $^{\circ}$C/250 MPa"

Fig. 14

Bending strength of the samples under different sintering temperatures[42]"

Fig. 15

Fracture micrographs of cores with different contents of silica fibers[47]"

Fig. 16

Schematic diagram of fracture of mullite fibers/ceramic matrix"

Fig. 17

Schematic illustration of the interface reaction layer formation"

Fig. 18

Whole process inspection results of gas turbine engine blades by industrial CT"

Fig. 19

Additive manufacturing of silica-based ceramic cores using SLS with vacuum infiltration[91]"

Fig. 20

LMD fabrication of Inconel 718 superalloy[99]"

Fig. 21

EBSD-IPF and engineering strain-stress curves of SLM built Mar-M509 Co-based superalloy under different laser energy densities[102]"

Fig. 22

LMD fabrication of Rene N5 Ni-based single-crystal superallo[106]"