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Effect of cold wire addition in tandem submerged arc welding on weld geometry and micro-hardness of heavy gauge X70 steel
Download2022-01-01
Ren, T., Mohammadijoo, M., Wiskel, J.B., Lazor, R., Willett, E., Ivey, D.G., Henein, H.
The pipeline industry has undertaken an essential upgrade of well established X70 pipeline steel in heavy gauge pipes to fill the demand of increased operating pressures. A developed welding process, cold wire tandem submerged arc welding (CWTSAW), with improved deposition rate and travel speed...
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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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2022-01-01
Bhardwaj, N., Henein, H., Wolfe, T.
Fused filament fabrication (FFF) is a method used to fabricate initial prototypes out of polymeric materials with printed parts often being used as load carrying elements. The mechanical properties of various polymer materials produced under certain printing conditions exhibit superior strength...
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Automated semantic segmentation of NiCrBSi-WC optical microscopy images using convolutional neural networks
Download2022-01-01
Rose, D., Forth, J., Henein, H., Wolfe, T., Qureshi, A.
Convolutional neural networks (CNNs) were used for the semantic segmentation of angular monocrystalline WC from NiCrBSi-WC optical microscopy images. This deep learning approach was able to emulate the laborious task of manual segmentation effectively, with a mean intersection over union (IOU)...
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On the role of orifice wetting for Al and Al22.5wt%Cu with Al2O3 in the Discharge Crucible method
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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
Valloton, J., Mahdi, N., Rabago, L., Chung, J., Henein, H.
Al-33wt%Cu eutectic droplets were rapidly solidified using Impulse Atomization, a drop tube technique. The samples were then processed in situ in an SEM using an HTN-0101 MEMS heating chip manufactured by Norcada. The temperature of the chip, as well as the heating and cooling rates, can be...
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The Discharge Crucible Method: update on experimental design, measurements, and orifice wetting
Download2022-01-01
The physicochemical properties, viscosity, density, and surface tension, are critical properties of liquid metals and alloys. These properties are needed for thermodynamics, solidification modelling, and materials properties databases. The discharge crucible method (DC) developed in 2003 has been...
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2022-01-01
Hoque, Md. S., Saha, A., Chung, H., Dolez, P. I.
Fire-protective fabrics made from high-performance fibers are available to provide protection from various hazardous conditions such as extreme heat and flame. However, these fabrics are often exposed to other deteriorating conditions, including moisture. It is a concern for the user's safety as...
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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...