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- 112Chemical and Materials Engineering, Department of/Research Articles and Materials (Chemical and Materials Engineering)
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- 14Rapid Solidification
- 12Impulse Atomization
- 11Undercooling
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- 7Atomization
- 7Microstructure
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2021-01-01
Ahmed, E., Henein, H., Qureshi, A., Liu, J.
Downhole tools made of dissolvable alloys (DAs) are getting more attractive, especially with the difficulties that arise from drilling wellbores with longer lateral distances. To date, most of the DAs are based on Al alloys (AAs) or Mg alloys, which offer undesirable mechanical properties. This...
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A mechanism study of acid-assisted oxidative stabilization of asphaltene-derived carbon fibers
Download2021-10-01
Leistenschneider, Desirée, Zuo, Peiyuan, Kim, Yuna, Abedi, Zahra, Ivey, Douglas G., de Klerk, Arno, Zhang, Xuehua, Chen, Weixing
The development of inexpensive carbon fiber precursors is necessary to meet the future demands of carbon fibers. This work shows how asphaltenes, which are obtained as a by-product in bitumen production, can play an important role as such inexpensive carbon fiber precursors. To synthesize carbon...
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Large-scale Metal Additive Manufacturing: A Holistic Review of the State of the Art and Challenges
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Lehmann, T., Rose, D., Ranjbar, E., Ghasri-Khouzani, M., Tavakoli, M., Henein, H., Wolfe, T., Qureshi, A.
Additive Manufacturing (AM) has the potential to completely reshape the manufacturing space by removing the geometrical constraints of commercial manufacturing and reducing component lead time, especially for large-scale parts. Coupling robotic systems with direct energy deposition (DED) additive...
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Investigation of Compressive and Tensile Behavior of Stainless Steel/Dissolvable Aluminum Bimetallic Composites by Finite Element Modelling and Digital Image Correlation
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Li, X., Ghasri-Khouzani, M., Bogno, A.-A., Liu, J., Henein, H., Chen, Z., Qureshi, A.J.
This study reports fabrication, mechanical characterization, and finite element modeling of a novel lattice structure based bimetallic composite comprised of 316L stainless steel and a func-tional dissolvable aluminum alloy. A net-shaped 316L stainless steel lattice structure composed of diamond...
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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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Fabrication of aluminum/stainless steel bimetallic composites through a combination of additive manufacturing and vacuum-assisted melt infiltration casting
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Ghasri-Khouzani, M., Li, X., Bogno, A.-A., Chen, Z., Liu, J., Henein, H., Qureshi, A.J.
This paper provides a hybrid method for net shape, lattice based, complex bimetallic composites using a combination of laser powder bed additive manufacturing and vacuum-assisted melt infiltration casting process. 316L stainless steel lattice structures were built using a selective laser melting...
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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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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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Preliminary geometrical and microstructural characterization of WC-reinforced NiCrBSi matrix composites fabricated by plasma transferred arc additive manufacturing through Taguchi-based experimentation
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Mercado Rojas, J.G., Ghasri-Khouzani, M., Wolfe, T., Fleck, B.A., Henein, H., Qureshi, A.J.
Metal matrix composites enhance the wear and corrosion properties of components in heavy-duty industries. This work reports the preliminary effects of process parameters such as current, linear speed, powder flow rate, nozzle angle, and powder, shield and center gases at the macro-scale and...
