Microstructure and Tensile Properties of Submerged Arc Welded 1.25Cr-0.5Mo Steel Joints

Prasad, K. Sajun; Dwivedi, Dheerendra Kumar

doi:10.1080/10426910802103551

Cited by 29 publications

(11 citation statements)

References 6 publications

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“…A comparison 26) also observed that the leading and trailing arc currents have negative influence while the trailing wire negative pulse time and welding speed have positive influence on the acicular ferrite volume fraction and the weld mechanical properties. Similar trend of volume fractions were also observed in some other works (14,16,27,28). In typical tandem submerged arc welding of HSLA steel, welding speed from 9.0 to 11.5 mm/s, leading wire current from 530 to 580 A, and trailing wire negative current from 680 to 910 A are found to be the most suitable 29) .…”

Section: Experimental Studies 21 Variants Of Saw Processsupporting

confidence: 65%

Experimental Studies on Submerged Arc Welding Process

Kiran¹,

Na²

2014

Journal of Welding and Joining

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The efficient application of any welding process depends on the understanding of associated process parameters influence on the weld quality. The weld quality includes the weld bead dimensions, temperature distribution, metallurgical phases and the mechanical properties. A detailed review on the experimental and numerical approaches to understand the parametric influence of a single wire submerged arc welding (SAW) and multi-wire SAW processes on the final weld quality is reported in two parts. The first part deals with the experimental approaches which explain the parametric influence on the weld bead dimensions, metallurgical phases and the mechanical properties of the SAW weldment. Furthermore, the studies related to statistical modeling of the present welding process are also discussed. The second part deals with the numerical approaches which focus on the conduction based, and heat transfer and fluid flow analysis based studies in the present welding process. The present paper is the first part.

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Section: Experimental Studies 21 Variants Of Saw Processsupporting

confidence: 65%

Experimental Studies on Submerged Arc Welding Process

Kiran¹,

Na²

2014

Journal of Welding and Joining

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“…This is in agreement with ref. [4]. This result is likely attributed to effect that increasing the welding speed at lower current resulted less thermal effect on the material, thus increasing the yield stress.…”

Section: Modeling Of Yield Stressmentioning

confidence: 91%

“…It was deduced that the weld metal grain structure and heat affected zone are affected by the heat input. Both the ultimate tensile strength and yield strength decreased with the increase in heat input, while the percentage elongation has increased [4]. The testing results showed the significance of cladding methods and estimated heat treatment influences on stated mechanical properties.…”

Section: Introductionmentioning

confidence: 90%

Study of Mechanical Properties of Carbon Steel Plate SA-516 Gr. 70 Welded by SAW Using V-Shape Joint Design

Amin¹,

Hanna²

2020

ETJ

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Submerged arc welding (SAW) is a fusion type welding and it is considered one of the most important welding types due to its inherent capabilities of high welding speed, high deposition rate, welding large thickness plates owing to its deep penetration characteristic and many other advantages. In this study, the goal was to investigate the effect of welding parameters, namely (welding current and welding speed) as well as the joint design on the mechanical properties (yield stress, bending force on the face of the weldment and hardness of the weld metal. Experiments were conducted employing Design of Expert (DOE) software and Response Surface Methodology (RSM) technique. The experiments were conducted by welding ASME SA-516 Gr. 70 steel plate with dimension (300 mm × 150 mm × 10 mm) depending upon the design matrix developed via the DOE. Results manifested that the optimum process parameters for maximum yield stress, maximum bending force and minimum hardness were at (425 amps) welding current and (35 cm/min) welding speed, where the arc voltage was held constant at (37 volts). The optimum values for the yield stress, bending force and hardness were (474.447 MPa, 36.997 kN and 150 HV), respectively. Finally, it was found that the predicted and experimental results of yield stress, bending force and hardness agree very well according to the ultimate error (1.05%, 1.92%, and 4.25 %), respectively.

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“…[14] The change in input process parameters changes the heat input that affects the microstructure of the heat-affected zone (HAZ) and weld zone (WZ), which in turn may influence the mechanical properties of the weldments. [15] The change in grain size and amount of pearlite and ferrite changes in microstructure of stainless steels due to heat input can be controlled by controlling process parameters of welding process. The grain coarsening is exhibited due to the absence of phase transformation from liquid to solid at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Effects of process parameters and thermo-mechanical simulation of gas metal arc welding process

Kamble

Rao

2016

International Journal of Modelling and Simulation

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The gas metal arc welding is a fusion welding consisting of multi-input multi-output process parameters and plays an important role in manufacturing because of high efficiency, good weld quality, low production cost, easy to realize automation, etc. The welding process parameters plays an important role in controlling weld bead quality; therefore, choosing an appropriate set of welding parameters is required for obtaining good weld bead. In addition, new materials are developed to increase properties and response parameters depend on new materials and input process parameters. In the present work, AISI 321 steel of 10 mm thickness is used for experimentation joined using AISI 308L filler rod of 1.2 mm diameter by controlling four input process parameters, viz welding voltage, welding speed, wire feed rate, and gas flow rate. The weld bead geometry parameters such as bead height, bead width, and bead penetration and mechanical properties such as tensile strength and hardness are considered as output parameters. The mathematical models are developed and tested using analysis of variance. The effects of process parameters on output parameters and microstructure are found out. Furthermore, the thermo-mechanical simulations are carried out using ANSYS simulation software which predicts the temperature and stresses distribution in the weldment.

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Microstructure and Tensile Properties of Submerged Arc Welded 1.25Cr-0.5Mo Steel Joints

Cited by 29 publications

References 6 publications

Experimental Studies on Submerged Arc Welding Process

Experimental Studies on Submerged Arc Welding Process

Study of Mechanical Properties of Carbon Steel Plate SA-516 Gr. 70 Welded by SAW Using V-Shape Joint Design

Effects of process parameters and thermo-mechanical simulation of gas metal arc welding process

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