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Microstructure and Mechanical Characterization of Rapidly Solidified Cr-C Tool Steel - Annealing Effects
Download2016-01-01
Delshad Khatibi, P., Phillion, A.B., Henein, H.
The effect of isochronal annealing on D2 tool steel powder, rapidly solidified via both Impulse Atomization and Water Atomization, has been evaluated using high-resolution scanning electron microscopy and Vickers microhardness. The amount of supersaturation of the alloying elements inside the...
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2021-01-01
Gancarz, T., Bogno, A.-A., Berent, K., Cempura, G., Schell, N., Chulist, R., Henein, H.
In the case of increasing possibility of application Al alloys the Al5.0Mg0.2Sc alloy with 3.0 and 6.0 Li (wt %) after atomisation process was proposed in this study. To characterise liquid alloys the discharge crucible method was used, which allow to determine density, surface tension and...
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2018-06-01
Hearn, W., Bogno, A.-A., Spinelli, J.E., Valloton, J., Henein, H.
Hypo-eutectic Al-Si alloys are widely used in both the automotive and aerospace industries, however, they still have limited usage as structural materials, due to the inherent morphology of the Si phase that forms within the eutectic structure. This non-ideal Si morphology can be modified, via...
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2017-12-05
Valloton, J., Gawor, S., Henein, H.
Numerous previous researchers have used nucleation models as part of their simulation of droplet solidification. None of these have verified the nucleation portion of these models with experimental results. In this work, a heterogeneous nucleation model based on the classical nucleation theory...
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2021-01-01
Valloton, J., Bogno, A.-A., Rappaz, M., Henein, H.
Rapid solidification of Al-Cu droplets of eutectic composition was carried out using Impulse Atomization (a type of drop tube). Two distinct morphologies were observed: an irregular undulated eutectic assumed to form during recalescence, followed by a regular lamellar eutectic. The volume...
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On the role of orifice wetting for Al and Al22.5wt%Cu with Al2O3 in the Discharge Crucible method
Download2022-01-01
The demand to develop Materials Genomics and Integrated Materials Computation requires the availability of high temperature property data of liquid metals. As computing power and algorithms are constantly being improved, the accuracy of thermophysical property data has emerged as one of the...
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2022-01-01
Henein, H., Bogno, A.-A., Yin, S., Natzke, P., Gallerneault, M.
Scandium (Sc) is an expensive alloying element which has an important effect on the properties of aluminum alloys. It is of interest to determine for a variety of solidification conditions the effect of minor addition, in the hypoeutectic levels, of Sc on Al alloys. This study builds on past work...
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2021-01-01
Yin, S., Bogno, A.-A., Henein, H., Gallerneault, M.
This paper studies the solidification of hypoeutectic Al–Mg–Sc powders and spray deposited (SD) strips, generated by Impulse Atomization. The effects of Mg content in hypoeutectic Al–Mg–Sc was examined with respect to the extended solid solubility of Mg and Sc in α–Al, microstructure refinement...
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2019-01-01
El Moghazi, S.N., Wolfe, T., Ivey, D.G, Henein, H.
Plasma transferred arc additive manufacturing is a growing technology in the additive manufacturing world. The plasma transferred arc additive manufacturing system’s ability to produce large samples, compared with other common additive manufacturing techniques, makes it highly desirable in many...