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Skip to Search Results- 9Graduate and Postdoctoral Studies (GPS), Faculty of
- 9Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 5Chemical and Materials Engineering, Department of
- 5Chemical and Materials Engineering, Department of/Research Articles and Materials (Chemical and Materials Engineering)
- 3Mendez, Patricio (Chemical and Materials Engineering)
- 2Henein, Hani (Chemical and Materials Engineering)
- 1D.G. Ivey (Chemical and Materials Engineering)
- 1Dr. Douglas Ivey, Department of Chemical and Materials Engineering
- 1Dr. Hani Henein, Department of Chemical and Materials Engineering
- 1Dr. Patricio Mendez (Chemical and Materials Engineering)
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Characterization of HAZ of API X70 Microalloyed Steel Welded by Cold-wire Tandem Submerged Arc Welding.
Download2016-01-01
Mohammadijoo, M., Kenny, S., Ivey, D.G., Collins, L., Henein, H.
High strength low carbon microalloyed steels may be adversely affected by the high heat input and thermal cycle that they experience during tandem submerged arc welding (TSAW). The heat affected zone (HAZ), particularly the coarse grained heat affected zone (CGHAZ), i.e., the region adjacent to...
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CHARACTERIZATION OF X80 AND X100 MICROALLOYED PIPELINE STEEL USING QUANTITATIVE X-RAY DIFFRACTION
Download2018-01-01
Wiskel, J.B., Li, X., Ivey, D.G., Henein, H.
Quantitative X-ray diffraction characterization of four (4) X80 and three (3) X100 microalloyed steels was undertaken. The effect of through thickness position, processing parameters and composition on the measured crystallite size, microstrain and J index (relative magnitude of crystallographic...
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Spring 2014
Seven Ni-WC tubular wires utilized in this study were characterized by the nickel sheath area, powder composition, and overall initial carbide volume fraction of the wire prior to welding. The electrical resistivity of steel, stainless steel, and Ni-WC welding consumables were measured from...
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Spring 2017
During the past several decades, the relationship between microstructure and mechanical properties of high strength microalloyed steels has been extensively studied in an effort to improve the fracture toughness and strength of these types of steels, without appreciably increasing steel...
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Effects of Submerged Arc Weld (SAW) Parameters on Bead Geometry and Notch-Toughness for X70 and X80 Linepipe Steels
DownloadFall 2009
For the manufacture of higher strength pipelines to be feasible, a better understanding of the effects of welding on toughness is necessary. Bevel submerged arc welds were performed on X80 grade steel. The subsequent Charpy V-notch (CVN) test results indicated that the notch placement in the...
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Spring 2017
Heat distribution measurements in Gas Metal Arc Welding (GMAW) were concurrently measured at the cathode and anode giving increased insight and prediction capabilities. A calorimeter and water cooled cathode were used to determine energy partitions in GMAW for various electrodes, currents,...
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Finite Element Model of the Thermal Profile During Submerged Arc Welding with One and Two Electrodes
DownloadFall 2016
The submerged-arc welding (SAW) process is used extensively in the manufacturing of pipes. The heat flow introduced by the welding operation has a significant impact on the properties of both the weld metal and the heat affected zone (HAZ). The work presented in this thesis aims to develop a...
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Fall 2011
A calorimeter for the deposition of metal during free-flight GMAW was developed for the purpose of measuring droplet heat content in Ni/WC tubular wires. By approximating the thermal gradients within the calorimeter to be second order polynomials the energy transferred to the calorimeter by the...
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2018-01-01
Mohammadijoo, M., Collins, L., Lazor, R., Henein, H., Ivey, D.G.
The structural performance of microalloyed steel weld joints is essentially dependent on the microstructural characteristics of the heat-affected zone (HAZ). However, the microstructure is adversely impacted by the heat input of the welding process. As such, an X70 microalloyed steel was welded...
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Microstructural Characterization of Chromium Carbide Overlays and a Study of Alternative Welding Processes for Industrial Wear Applications
DownloadSpring 2014
Microstructural features of chromium carbide overlays (CCOs) were examined in this work. It was found that the microstructures can contain unmelted alloy powders. It was also shown that the structures of the primary M7C3 carbides are long hexagonal rods. Change in the microstructure from the top...