scholarly journals Finite Element Modeling and Experimental Validation of Microstructural Changes and Hardness Variation During Gas Metal Arc Welding of Aisi 441 Ferritic Stainless Steel

2021 ◽  
Author(s):  
SERAFINO CARUSO ◽  
STANO IMBROGNO
Keyword(s):  
Finite Element ◽  
Stainless Steel ◽  
Grain Growth ◽  
Ferritic Stainless Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
User Subroutine ◽  
Hardness Variation ◽  
Metal Arc Welding ◽  
Welding Processes

Abstract Grain growth and hardness variation occurring in high temperature Heat Affected Zone (HAZ) during the welding processes are two thermal dependant aspects of great interest for both academic and industrial research activities. This paper presents an innovative Finite Element (FE) model capable to describe the grain growth and the hardness decrease that occur during the Gas Metal Arc Welding (GMAW) of commercial AISI 441 steel. The commercial FE software SFTC DEFORM-3DTM was used to simulate the GMAW process and a user subroutine was developed including a physical based model and the Hall-Petch (H-P) equation to predict grain size variation and hardness change. The model was validated by comparison with the experimental results showing its reliability in predicting important welding characteristics temperature dependant. The study provides an accurate numerical model (i.e. user subroutine, heat source fitting, geometry,…) able to successfully predict the thermal phenomena (i.e. coarsening of the grains and hardening decrease) that occur in the HAZ during welding process of ferritic stainless steel.

Effect of Gas Metal Arc Welding on Magnetic Response of Ferritic Stainless Steel

2020 ◽  
Vol 45 (2) ◽  
pp. 1293-1303
Author(s):  
Sanjay Kumar Gupta ◽  
Avinash Ravi Raja ◽  
Meghanshu Vashista ◽  
Mohd Zaheer Khan Yusufzai
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Magnetic Response ◽  
Metal Arc Welding

scholarly journals Sensitization and Corrosion of 409M Ferritic Stainless Steel by Different Welding Processes

2019 ◽  
Vol 8 (2) ◽  
pp. 3904-3911
Keyword(s):  
Stainless Steel ◽  
Tensile Properties ◽  
Ferritic Stainless Steel ◽  
Arc Welding ◽  
Research Work ◽  
Chemical Exposure ◽  
Constant Current ◽  
Metal Arc Welding ◽  
Acidic Environments ◽  
Welding Processes

The aim of this research work was to analyze the sensitization due to the effect of welding (Shielded Metal Arc Welding, Gas Tungsten Arc Welding & Gas Metal Arc Welding) heat in heat affected zone area in terms of metallurgical properties, mechanical properties and corrosion of base metal comparatively. Also the effect of different chemicals / acidic environments on tensile properties was investigated. The plates of 3 mm thickness of 409M Ferritic Stainless Steel welded at constant current of 90A by three different welding processes with the same filler metal. The microstructure observation was made after Marble reagent chemical etched. Then tensile properties were investigated and comparative analysis done between the tensile properties i.e. before and after the chemical exposure given to it with the parent metal. After completion of experimental work it is found that SMAW, GMAW and GTAW have affected the microstructure of 409M Ferritic Stainless Steel. Due to the acidic environments/ Chemical exposures the strength and ductility of the metal affects. But comparatively GTAW has shown better process than GMAW and SMAW for welding of 409M Ferritic Stainless Steel. It should be used with caution in sulphuric acid environments than chloride environments to resist corrosion.

scholarly journals Characterization of Gas Metal Arc Welding welds obtained with new high Cr–Mo ferritic stainless steel filler wires

2013 ◽  
Vol 51 ◽  
pp. 474-483 ◽  
Author(s):  
V. Villaret ◽  
F. Deschaux-Beaume ◽  
C. Bordreuil ◽  
G. Fras ◽  
C. Chovet ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Metal Arc Welding

Effect of Synergic Controlled Pulsed and Manual Gas Metal ARC Welding Processes on Mechanical and Metallurgical Properties of AISI 430 Ferritic Stainless Steel

2013 ◽  
Vol 58 (4) ◽  
pp. 1029-1035 ◽  
Author(s):  
T. Teker
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Structural Changes ◽  
Gas Metal Arc Welding ◽  
Weld Zone ◽  
Tensile Tests ◽  
X Ray Diffraction ◽  
Metal Arc Welding ◽  
Welding Processes ◽  
Aisi 430

Abstract The gas metal arc is widely used in manufacturing industries because of the high metal deposition rate and ease of automation with better weld quality at permissible cost than other welding processes in joining similar and dissimilar metals. AISI 430 steel is normally difficult to weld by melting methods, due to the associated problems such as grain growth. For this purpose, AISI 430 ferritic stainless steel couples of 10 mm thick were welded by the synergic controlled pulsed (GMAW-P) and manual gas metal arc (GMAW) welding techniques. The interface appearances of the welded specimens were examined by scanning electron microscopy (SEM). Structural changes in the weld zone were analysed by energy dispersive spectrometry (EDS) and X-ray diffraction (X-RD). Microhardness, notch charpy and tensile tests were conducted to determine the mechanical properties of specimens. Accordingly, the best result was obtained from the GMAW-P technique.

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