Effect of Different Welding Parameters on the Mechanical and Microstructural Properties of Stainless Steel 304H Welded Joints

2017 ◽  
Vol 30 (10) ◽  
Keyword(s):  
Stainless Steel ◽  
Welded Joints ◽  
Welding Parameters ◽  
Microstructural Properties ◽  
Mechanical And Microstructural Properties

scholarly journals Influence of Friction Pressure at a Given Burn-off Length on the Mechanical and Microstructural Properties of Welded Joints from Medium-Carbon Alloyed Steels in Rotaty Friction Welding

2018 ◽  
Vol 7 (4.36) ◽  
pp. 978
Author(s):  
Elena Priymak ◽  
Nadezhda Firsova ◽  
Elena Bashirova ◽  
Svetlana Sergienko ◽  
Elena Kuzmina ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Welded Joints ◽  
Friction Welding ◽  
Thermal Deformation ◽  
Tensile Tests ◽  
Welding Parameters ◽  
Microstructural Properties ◽  
Medium Carbon ◽  
Friction Pressure ◽  
Mechanical And Microstructural Properties

This study investigates the influence of friction pressure at a given  burn-off length on the microhardness, tensile properties and microstructure of the welded joints from steel 32-2-Mn and 40-Cr-Ni. Phase transformations occurring in the materials to be welded as a result of thermal deformation effects are analyzed. The change in the length of the thermomechanical affected zone (TMAZ) depending on the friction pressure is shown. The results of the distribution of microhardness in the weld, clearly illustrating the formation of hardened and weakened areas. The results of tensile tests of welded joints are given. Analyzed the place of fracture at various welding parameters. The necessity of studying the distribution of internal residual stresses to explain the mechanism of fracture of welded joints is shown.  

Effect of Welding Parameters on Mechanical and Microstructural Properties of Dissimilar AA6082-AA2024 Joints Produced by Friction Stir Welding

2006 ◽  
Vol 519-521 ◽  
pp. 1163-1168 ◽  
Author(s):  
Pasquale Cavaliere ◽  
Antonio Squillace
Keyword(s):  
Friction Stir Welding ◽  
Testing Machine ◽  
Fatigue Tests ◽  
Optical Observations ◽  
Control Mode ◽  
Welding Parameters ◽  
Microstructural Properties ◽  
Amplitude Control ◽  
Friction Stir ◽  
Mechanical And Microstructural Properties

The effect of processing parameters on mechanical and microstructural properties of dissimilar AA6082-AA2024 joints produced by Friction Stir Welding was analysed in the present study. Different samples were produced by employing a fixed rotating speeds of 1600 RPM and by using the advancing speeds of the tool of 80 and 115 mm/min. All the welds were produced in direction perpendicular to the rolling one for both the alloys and by changing, for all the processing conditions, the alloy positioned on the advancing side of the tool. The mechanical properties of the joints were evaluated by room temperature tensile tests. Fatigue tests on the welds were carried out by using a resonant electro-mechanical testing machine under constant loading control up to 250 Hz sine wave loading. The fatigue tests were conducted in the axial total stress-amplitude control mode with R=smin/smax=0.1. The microstructural evolution of the material was analysed by optical observations of the welds cross sections and SEM observations of the fracture surfaces.

Influence of welding parameters on pit initiation and pit growth in welded joints of X5CrNi18-10 stainless steel

2018 ◽  
Vol 63 (1) ◽  
pp. 167-179 ◽  
Author(s):  
Bore V. Jegdić ◽  
Biljana M. Bobić ◽  
Bojana M. Radojković ◽  
Behar Alić
Keyword(s):  
Stainless Steel ◽  
Welded Joints ◽  
Welding Parameters ◽  
Pit Initiation

Effect of Welding Parameters on Mechanical and Microstructural Properties of Dissimilar Aluminum Alloy Joints Produced by Friction Stir Welding

2014 ◽  
Vol 592-594 ◽  
pp. 250-254 ◽  
Author(s):  
Sabitha Jannet ◽  
P. Koshy Mathews
Keyword(s):  
Friction Stir Welding ◽  
Rolling Direction ◽  
Structural Evolution ◽  
Tensile Tests ◽  
Processing Parameters ◽  
Welding Parameters ◽  
Microstructural Properties ◽  
Rotating Speed ◽  
Friction Stir ◽  
Mechanical And Microstructural Properties

The effect of processing parameters on the mechanical and microstructural properties of dissimilar AA6061 t6–AA5083 0 joints produced by friction stir welding was studied. Different samples were produced by varying the advancing speeds of the tool as 20 and 40 mm/min and by varying the alloy positioned on the advancing side of the tool. In the various trials the rotating speed is varied from 600 to 900 RPM. All the welds were produced perpendicular to the rolling direction for both the alloys. Micro hardness (HV) and tensile tests performed at room temperature were used to evaluate the mechanical properties of the joints. Various tests were performed on the joints previously subjected to ageing. In order to analyze the micro structural evolution of the material, the welds’ zones were observed optically.

scholarly journals Modeling of Bending Properties of Stainless Steel 304 Sheets Welded by Tungsten Inert Gas Welding Process

2019 ◽  
Vol 15 (4) ◽  
pp. 10-22
Author(s):  
Ali Hussein Alwan
Keyword(s):  
Stainless Steel ◽  
Welded Joints ◽  
Gas Pressure ◽  
Inert Gas ◽  
Welding Parameters ◽  
Tungsten Inert Gas Welding ◽  
Bending Properties ◽  
Argon Gas ◽  
Bending Force ◽  
Stainless Steel 304

In this research, the effects of both current and argon gas pressure on the bending properties of welded joints were studied. Using the possible ranges of welding gas pressures and currents, Tungsten inert gas welding (TIG) of stainless steel (304) sheet was used to obtain their influence on the maximum bending force of the (TIG) welded joints. Design of experiment (DOE) ‘version 10' was used to determine the design matrix of experiments depending on the used levels of the input factors. Response surface methodology (RSM) technique was used to obtain an empirical mathematical model for the maximum bending force as a function of welding parameters (Current and Argon gas pressure). Also, the analysis of variance (ANOVA) was used to verify the adequacy of the resulted model statistically.  

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