Plastic inhomogeneity and easy glide of aluminum and AlAl3Ni eutectic alloy with [111] fiber texture

Microstructural evolution in the superplastic-like deformation of Al-Al3Ni eutectic alloy with [111] fiber texture

“…This result indicates that [111] is the final stable orientation when the tensile flow is accomplished mainly by multiple slip and its related dislocation activities ( Figure 10). For EU200 deformed with plastic inhomogeneity, the [111] pole figures obtained before loading (Figure 2(a)) and after tensile failure (Figure 9(a) [18,19] As suggested by our previous ble fiber texture, in which the [100] component is a sign of study, [18,19] primary slip is favorable for the subgrains of dynamic recrystallization, [16,17] is not observable. Indeed, the subgrain structures at various strains (Figures 4 to 8 sliding also may contribute to the plastic compatibility in the inhomogeneous deformation, if it exists.…”

Progress on superplasticity and superplastic forming in Taiwan during 1987–1997

“…7. The group of Chen and Lui in National Cheng Kung University has started to explore the superplastic behavior of the Al/Al 3 Ni system [59,60]. The Al/Al 3 Ni eutectic alloys were prepared by directional solidi®cation, followed by hot extrusion to result in ®ne-grained substructures with strong [1 1 1] ®ber texture.…”

“…These include the academic workshops in 1992 and 1994, and industry-oriented promotional workshops in 1992 (by Metal Industries Development Center) and 1994 (by National Taiwan University). [59,60], and superplasticity of Fe-Al intermetallics (Chu) in National Ocean University [61].…”

Influence of calcium addition on the superplastic-like behavior of extruded Al-Al3Ni eutectic alloy

“…The billets were cast using a directional solidification pro-Extruded Al-Al 3 Ni Eutectic Alloy cess to have the Al 3 Ni particles distributed more uniformly in matrix. Al-Al 3 Ni and Al-X-Ni and Alour previous studies, [7,8] the tension tests were conducted Ni-X alloys, where X ϭ Mg, Mn, etc., have an acceptable at a temperature of 500 ЊC, and the tensile force was strength owing to the presence of hard eutectic Al 3 Ni partiapplied along the extrusion direction. UAN, T.S.…”

“…Strain rates in excess of 10 Ϫ2 s Ϫ1 lower when the amount of calcium added is increased. [7,8] Moreover, the strain rate corresponding to maximum elongation also relies on the distribution of Al 3 Ni particles; it shifts to a higher strain rate (6.3 ϫ 10 Ϫ3 s Ϫ1 ) if the particles are distributed only intergranularly. To achieve this goal, Ca eutectic alloy, ϳ3.9 m for the 0.1 wt pct Ca eutectic alloying with a minor active element such as calcium may alloy, and ϳ1.4 m for the Ca-free one.…”