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Jalal Kangazian
Isfahan University of Technology
14Publications
3H-index
31Citations
Publications 14
Newest
This research investigated the microtexture and boundaries characteristics of the Incoloy 825 Ni-based superalloy/UNS S32750 super duplex stainless steel (SDSS) dissimilar welds using electron back scattered diffraction analysis. The results indicated that the weld metal was textured; thus, {293} and {348} texture components were observed. As a result of the grain growth and the changes in the morphologies of the phases in the heat affected zones (HAZs), the primary texture components of the all...
#1Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
Abstract The aim of this research was to study the effect of the welding current mode on the microtexture and corrosion behavior of UNS S32750 stainless steel/UNS N08825 Ni-based superalloy welds. The weldments were fabricated using pulsed current (PC) and continuous current (CC) gas tungsten arc welding. The electron backscatter diffraction analysis was used to evaluate the microtexture and boundaries characteristics of the weldments. Corrosion behavior of the weld metals was also investigated ...
#1Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
Abstract The feasibility of dissimilar friction stir welding (FSW) between the SAF 2507 super duplex stainless steel and the Incoloy 825 Ni-based superalloy was evaluated. The microstructure and mechanical behavior of the weldments were examined too. The results showed that the alloys were successfully welded together by positioning the SAF 2507 on the advancing side. The nuggets displayed higher hardness than the base metals, due to the occurrence of dynamic recrystallization and the subsequent...
#1M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
#2Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
Last.Jerzy A. Szpunar (U of S: University of Saskatchewan)H-Index: 42
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The aim of this research was to analyze the relationship between the microstructure and mechanical properties of Inconel 617/AISI 310 stainless steel electron beam welds. The microstructure of the weldments was studied using scanning electron microscopy and the electron backscatter diffraction (EBSD) technique. Mechanical properties of the weldments, including tensile behavior, hardness and impact toughness resistance, were evaluated. The results indicated that the electron beam welding process ...
#1Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
This work addressed the effect of pulsed current (PC) and pass number on the microstructure, mechanical properties and corrosion behavior of Incoloy 825/UNS S32750 welds. The alloys were welded using PC and continuous current techniques. Mechanical properties of the weldments were examined using hardness, Charpy and transverse tensile tests. General corrosion and pitting corrosion behavior of the weld metals were studied using potentiodynamic polarization and electrochemical impedance spectrosco...
#1Mohammad Amir Derakhshi (IUT: Isfahan University of Technology)
#2Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
Last.M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
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Abstract This work addressed the microstructure-corrosion behavior relationship of Inconel 617/AISI 310 dissimilar electron beam welds. The obtained results showed that the weld metals had weaker general corrosion resistance and pitting corrosion behavior than parent metals, as a result of the segregation of the elements and formation of the precipitates which were rich in Mo, Nb, Cr and Co. With increasing the welding travel speed, a finer dendritic microstructure was observed in weld metal, le...
#1Amirkeyvan Rahimi (IUT: Isfahan University of Technology)
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
Last.Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
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In this project, the sheet of Ti–6Al–4V alloy (annealed) with a thickness of 1 mm was welded with butt joints by means of pulsed current micro-plasma arc welding without using a filler metal. The purpose of this study is to optimize parameters in the event of increasing tensile strength by using pulse current and its comparison with the pulse-free system. Optical microscope and scanning electron microscope were used to investigate the type of phases, microstructure of weld metal, base metal and ...
#1Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
Last.Ali Ashrafi (IUT: Isfahan University of Technology)H-Index: 11
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Surface features of a dissimilar friction stir weld between Incoloy 825 Ni-based alloy and SAF 2507 super duplex stainless steel were investigated using scanning electron microscopy, microhardness test, cyclic potentiodynamic polarization, and electrochemical impedance spectroscopy. The surface of the weldment showed lower general corrosion resistance in comparison to the base metals. Areas under the weld shoulder exhibited weak pitting resistance because of the deformed structure and/or chromiu...
#1Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
This study was carried out to investigate the evaluation of dissimilar welding between Incoloy 825 Ni-based alloy and SAF 2507 super duplex stainless steel. Welding was conducted by pulsed current (PC) and continuous current (CC) gas tungsten arc welding (GTAW) methods using ERNiCrMo-3 filler wire. The microstructure of weld zones and base metal/weld interfaces as well as mechanical properties of weldments were characterized. The results detailed the formation of Nb, and Mo-rich phases in the in...
#1A. Foroughi (IAU: Islamic Azad University)
#2M. Shamanian (IUT: Isfahan University of Technology)H-Index: 25
Last.Jalal Kangazian (IUT: Isfahan University of Technology)H-Index: 3
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In the present research, microstructure and mechanical properties of 2205 duplex stainless steel/A517 quench and tempered low alloy steel dissimilar joint were investigated. For this purpose, gas tungsten arc welding was used with ER2209 filler metal. Characterizations were conducted by optical microscopy, scanning electron microscopy equipped with an energy dispersive spectroscopy and X-ray diffraction. Mechanical properties were evaluated in micro-hardness, tensile and impact tests. Microstruc...
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