Rheology of Al-Cu-Mg pre-alloyed powder in supersolidus liquid phase sintering process

Computational Efficient Modeling of Supersolidus Liquid Phase Sintering in Multi-component Alloys for ICME Applications

“…Similarly, it has been demonstrated that the addition of Sn to aluminum alloys reduces the solidus temperature [22,23], which resulted in a rapid increase in the densification trajectory with temperature. Once again, the model predictions are able to replicate the experimentally observed sintered densities after the addition of elemental Sn to 6061, as shown in Fig.…”

“…To demonstrate the capability of the model discussed in "Model for densification and shape" section, experimental data from the literature [20][21][22][23] for the sintering behavior of three groups of material systems are considered, including (i) high-speed steels (HSS), (ii) stainless steels (SS) and (iii) aluminum alloys (AA). Compositions of the alloys in each group, together with the names used in the corresponding references, are summarized Table 1.…”

“…Bollina [21] studied the supersolidus liquid phase sintering of gas and water atomized stainless steels (GA316L and WA316L) after examining changes in the densification behavior due to the addition of 0.2 and 0.8 wt% of elemental boron (B) in each alloy. In addition, Lui et al [22] and Momeni et al [23] showed the effect of adding various amounts of tin (Sn) on the densification behavior of aluminum alloys 6061 and 2024, respectively.…”

“…Table 2 Model parameters used to calculate sintering performance Parameters HSS [25] SS [25] AA [25] Atomic volume, Ω [m 3 ] 1.13 × 10 pore pinning [26]. Similarly, by using the mean grain size data reported by Momeni et al [23], the apparent activation energy for aluminum alloys is estimated to be 320 kJ/ mol. In the case of high-speed steels, the final grain sizes at different sintering temperatures are estimated from the microstructures in [20], which are then used with Eq.…”

“…Momeni et al [23] reported shape losses in cylindrical samples after SLPS in two Al-alloys. They characterized shape loss by measuring the ratio of maximum and Fig.…”