Compression properties enhancement of Al-Cu alloy solidified under a 29 T high static magnetic field

Review on Eutectic-Type Alloys Solidified under Static Magnetic Field

“…Isothermal solidification without or with a very weak temperature gradient during solidification is another essential solidification method. Figure 2b shows a copper furnace with a 70 mm isothermal zone designed for solidification under a high SMF (>20 T) [80]. The ex situ observation procedure of materials is also shown in Figure 2b, where the distribution and morphology of the microstructure can be obtained in a three-dimensional manner assisted by X-ray computed tomography (XCT).…”

“…Ex situ observation using XCT in the laboratory provides an alternative approach to investigate the 3D information of crystals under a high SMF. The 3D morphology of dendrites under directional solidification has been studied using XCT [30,80]. Lin et al [61] reconstructed the 3D morphology of primary α-Al dendrites treated by a 24 T high SMF during bulk solidification and found that the dendrite growth was stable, and the dendrite size increased under the high SMF.…”

“…Among these studies, Dong et al found that the high SMF could first orient the primary MnSb phase in a Mn-Sb hypoeutectic alloy and induced the orientation of the subsequent eutectic microstructure [120]. Zheng et al reconstructed the primary Al2Cu phases treated by the 29 T super-high SMF using XCT and clearly observed that the Al2Cu spatially oriented along the field direction [80]. In recent years, results showed that the precipitations can be oriented under the high SMF in many ETAs, as shown in Table 2.…”

Solidification Processing of Metallic Materials in Static Magnetic Field: A Review

“…Adopting effective strategies to eliminate the shrinkage porosity is one of the most attractive research subjects for metallurgists [77][78][79][80]. By imposing a 29 T SMF, Zheng et al found the morphologies of shrinkages are changed to approximately regular spheres and the average volume of shrinkages become larger, resulting from the suppression of melt convection (Figure 12) [20].…”

“…In this review, we emphasize the state of the art of solidification processing in the static magnetic field (SMF). The numerous studies confirm that applying the SMF to metal solidification processes is a promising and novel strategy to modify nucleation [14], undercooling [15], interface free energy [16], grain coarsening [17] and refinement [18], segregation [19], and porosity [20]. Although the magnetic field has exerted significant effects on metal solidification processes, its applicability needs further development and the related physical mechanisms deserve further elucidation.…”