Thermoelectric power characterization of a 2024 aluminum alloy during solution treatment and aging

On the transformation behaviour of NiTi particulate reinforced AA2124 composites

“…The temperature dependence of the TEP is indicative of the amount of solute in the matrix. Solution treated possesses the maximum solute level and subsequent aging at 463 K results in a lower value because of solute consumption for precipitation [42,43]. The TEP signals of the NiTi containing materials show an abrupt change in the vicinity of the austenitic to martensitic phase transition for all heat treatment conditions.…”

Optimisation of heat treatment of Al–Cu–(Mg–Ag) cast alloys

“…2a). Above 548°C, however, the solubility of Cu decreases by increasing temperature [19]. Although increasing Cu up to 5.65 mass% provides formation of a higher fraction of Al 2 Cu, at the same time, it reduces the temperature gap between Al 2 Cu formation and liquidus temperature (DT).…”

“…At the optimal ageing temperature, the alloy reaches the peakageing hardness value within an adequate time, while, on the other hand, lower temperatures require a relatively long time to reach the peak; at higher temperatures, precipitates turn into relatively large non-coherent particles offering low strength (over-aged) [18]. In previous works, Al-Cu-Mg-Ag alloys were artificially aged at a quite wide temperature range from 150 to 250°C to identify the peakageing condition [19][20][21][22]. The peak-ageing temperature was changed by changes in concentration of Cu, Mg and Ag in the alloy [20].…”

Microdefects formation during the twin-roll casting of Al–Mg–Mn aluminium alloys

“…The thermoelectric power (TEP) is a very sensitive technique to measure the effect of solute elements inside an aluminium matrix [13][14][15][16][17][18]. In the case of the TRC AA3105 high speed, the TEP is equal to −1.509 ± 0.011 V/K.…”