Bulk Ultra‐Fine Eutectic Structure in Ti—Fe—Base Alloys.

Abstract

Alloys. -An ultra-fine eutectic structure is prepared in the Ti 70.5 Fe 29.5 binary alloy by slow cooling from the melt through arc melting and cold crucible rod casting. High strength-ductile bulk specimens with ultrafine eutectic microstructure are obtained after addition of the rather cheap element Sn to the binary Ti70.5Fe29.5 alloy. The ternary alloy exhibits a significant improvement of the plastic deformability. The ingot of Ti67.79Fe28.36Sn3.85 alloy solidified at a low cooling rate shows the high processability of this ductile alloy in bulk scale without any micrometer-size second phase dispersions. -(DAS*, J.; KIM, K. B.; BAIER, F.; LOESER, W.; GEBERT, A.; ECKERT, J.; J.

Effect of laser surface remelting on the microstructure and properties of Al-Al2Cu-Si ternary eutectic alloy

“…In the present work, we report the effect of processing conditions on the phase, morphology, modality, volume fraction and feature length-scales of solidification microstructure of Al-Cu-Si BUECs. In the past, the primary method for the control of volume fraction involved varying the alloy composition 4 , 8 , 14 . However, the processing conditions and mechanical properties of Al 81 Cu 13 Si 6 BUECs with varying volume fractions have not been studied till date.…”

Phase equilibria in the Fe-Mo-Ti ternary system at 1000 °C

“…Eutectic alloys with two-phase microstructures based on an A2 † Ti solid solution and a B2 † TiFe intermetallic phase have been shown to possess strengths up to 2.5 GPa and elongations to failure of 15% [1,2]. These properties have led to the suggestion that such materials have potential for high strength structural applications.…”