Microstructure and phase transformations in a liquid immiscible Fe60Cu20P10Si5B5 alloy

NVESTIGATIONS OF MICROSTRUCTURE AND PHASE TRANSFORMATIONS OF Fe71.25Si9.5B14.25In5 ALLOY

“…3). On this basis (and referring to other works [11,12]), it can be concluded that, in the present experiment, there is no mutual dissolution of the two immiscible liquids and a state of homogeneous liquid is not reached. During the cooling five different peaks were recorded at 1360, 1308, 1290, 1264 and 1222 K. These exothermic peaks correspond to the crystallization of the liquid alloy.…”

“…During the cooling five different peaks were recorded at 1360, 1308, 1290, 1264 and 1222 K. These exothermic peaks correspond to the crystallization of the liquid alloy. The presence of multiple peaks during crystallization was also observed in another work [11]. The alloys to which this effect applies present a miscibility gap: this suggests that it may be due to partitioning of the alloy into droplets of different chemical compositions, which results in the slightly different values of crystallization temperatures observed during DTA measurements.…”

“…There are also the Fe-rich spherulitic precipitates within the In-rich regions. This microstructure can be interpreted in terms of a high value of mixing enthalpy between Fe and In (which is +19 kJ/mol [8]), because such a microstructure is typical for liquidimmiscible alloys [9][10][11]. The spherulitic morphology of the precipitates suggests that the particles found on both sides (Fe-rich and In-rich) were formed in a liquid state due to liquid miscibility occurring before crystallization.…”

Formation, Microstructure, and Properties of Dissimilar Welded Joint between CrMnFeCoNi and Fe

“…This approach offers a more in-depth understanding of crystallization in the weld due to the mixing of two distinct chemical compositions. Continuing and expanding upon earlier research on welding dissimilar materials [ 17 , 18 ], the present study leverages experiences gained from investigating the use of thermography to study crystallization processes and phase transformations in metal alloys [ 19 , 20 ]. This work aims to offer fresh perspectives on welded joint formation analysis and furnish engineers with valuable insights for the production of welded joints between iron or low-alloy steels and high-entropy alloys.…”