Effect of electromagnetic interaction during fusion welding of AISI 2205 duplex stainless steel on the corrosion resistance

García-Rentería, M.A.; López-Morelos, Víctor H.; González‐Sánchez, J.; García-Hernández, R.; Dzib‐Pérez, L.; Curiel-López, Francisco Fernando

doi:10.1016/j.apsusc.2016.11.109

Cited by 26 publications

(5 citation statements)

References 35 publications

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“…Even though the HAZ in the 5xxx aluminum is somewhat cathodic, it is more cathodic in the 2xxx alloy. The HAZ of 7xxx series is anodic to unprocessed material and would be extremely dangerous [19].…”

Section: Resultsmentioning

confidence: 99%

Potentiodynamic Corrosion Behavior and Microstructural Characteristics of Pulsed CMT-Welded AA2014-T6 Aluminium Alloy Joints: Effect of PWHT

Are¹,

Hadi²,

Chinnasamy³

et al. 2022

Advances in Materials Science and Engineering

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AA2014-T6 is an Al-Cu-Mg-based precipitation-hardened aluminium alloy widely used in aerospace due to its high strength to weight ratio. This alloy is joined by a pulsed cold metal transfer (PCMT) arc welding process to overcome the high heat input related problems in gas metal arc welding (GMAW) such as a coarser dendritic structure in the fusion zone (FZ), wider heat affected zone (HAZ), solidification and HAZ liquation cracking, softening in HAZ, and poor corrosion resistance of welded joints in salt environment. The joints were subjected to PWHT of artificial aging (AA), solution treatment (ST), and solution treatment + aging (STA) conditions. The corrosion rate was determined using a potentiodynamic corrosion test in a solution of 3.56 wt.% NaCl with pH values of 4, 7, and 11. Results disclosed that the PCMT joints subjected to the potentiodynamic corrosion test in NaCl solution of pH-4, pH-7, and pH-11 disclosed very low, moderate, and extremely high pitting corrosion, respectively. The corrosion resistance of ST joints was improved by 53.34%, 15%, and 15.12% in pH-4, pH-7, and pH-11 NaCl solution compared to as-welded joints. The pitting potential of ST joints is comparable to BM. The BM showed the pitting potential of −175, −450, and −550 mV in pH-4, pH-7, and pH-11 NaCl solution. The ST joints showed 75.29%, 29.16%, and 27.85% lower corrosion potential compared to STA joints in pH-4, pH-7, and pH-11 NaCl solution, respectively. The ST joints disclosed the lower pitting potential of −105, −425, and −505 mV in pH-4, pH-7, and pH-11 NaCl solution, respectively, whereas the STA joints revealed greater pitting potential of −425, −600, and −700 mV in pH-4, pH-7, and pH-11 NaCl solution, respectively. The superior corrosion resistance of ST joints compared to AA and STA joints is attributed to the dissolution of precipitates in Al solid solution resulting in a lower potential difference in FZ. This minimizes the preferential sites for pitting corrosion to occur.

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Section: Resultsmentioning

confidence: 99%

Potentiodynamic Corrosion Behavior and Microstructural Characteristics of Pulsed CMT-Welded AA2014-T6 Aluminium Alloy Joints: Effect of PWHT

Are¹,

Hadi²,

Chinnasamy³

et al. 2022

Advances in Materials Science and Engineering

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“…In addition, the corrosion resistance of the metal is also very important [26]. Magnetic fields are used in the fusion welding of duplex stainless steel to improve the resistance to localized corrosion by using a low-intensity magnetic field assist [27]. Zhong et al [28] utilized a novel in-situ transverse magnetic field acting on a cold metal transfer in a directional energy deposition arc of 316 L stainless steel.…”

Section: Of 13mentioning

confidence: 99%

Effect of Alternating Magnetic Field on the Organization and Corrosion Resistance of 2205 Duplex Stainless Steel Narrow-Gap Laser-MIG Hybrid Weld Head

He,

Zhao,

et al. 2023

Coatings

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In this study, an alternating magnetic field is applied in the narrow-gap laser-MIG hybrid welding of 2205 duplex stainless steel with a thickness of 25 mm to achieve the purpose of balancing the ration of the two phases, refining the grains and improving the corrosion resistance. With the help of OM, EBSD, TEM, and other microstructural analysis methods, the organization evolution of a 2205 duplex stainless steel narrow-gap laser arc hybrid weld under the effect of alternating magnetic field is revealed. The corrosion resistance of the welded joints is investigated by electrochemical tests. The results show that the use of a 40 mT applied alternating magnetic field can not only effectively inhibit the generation of porosity and unfused defects in the weld, but also that the addition of an alternating magnetic field improves the ratio of austenite to ferrite in the weld, and the ratio of the two phases is increased from 0.657 without a magnetic field to 0.850. The weld grain preferential orientation is affected by the magnetic field, and the weld austenite grains are shifted from the Goss texture to the Copper texture. Under the electromagnetic stirring effect of the applied magnetic field, the average austenite grain size decreased from 4.15 μm to 3.82 μm, and the average ferrite grain size decreased from 4.99 μm to 4.08 μm. In addition, the effect of the alternating magnetic field increases the density of twins in the organization. Electrochemical test results show that the addition of an alternating magnetic field increases the corrosion potential by 75.2 mV and the pitting potential by 134.5 mV, which indicates that the corrosion resistance of the cover-welded specimens is improved by the effect of an alternating magnetic field. The improvement in corrosion resistance mainly depends on the austenite grain refinement and the increase in the austenite content.

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“…Due to the good connection performance and excellent air tightness, welding fabrication has been applied in the manufacturing of marine steel structures such as drilling platforms and seabed pipelines [1][2][3][4]. However, welded structures will always be high-risk areas for the occurrence of corrosion crack in the sea and source of corrosion failure of marine steel structures [5][6][7][8]. With international investment increasing in marine projects, corrosion protection of welded structures in the marine environment has been a focus of research [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…With studies and reports on corroded welded structures increasing in recent years, researchers have deeper understandings of corroded welded structures [18][19][20][21]. However, the research emphasis is always on the corrosion characteristics of different weld joints [7,8,20], extended behavior of corrosion fatigue crack [22][23][24], and specific corrosion environment's impacts on corrosion characteristics of welded structures [25][26][27]. Relatively little research is dedicated to the nucleation mechanism of corrosion cracks in welded structures.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Crack Nucleation Mechanism in the Welded Structures of X65 Steel in Natural Seawater

Bai

Gao

Jiang

2018

Advances in Materials Science and Engineering

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The nucleation mechanism of corrosion cracks in welded structures in natural seawater has been revealed through investigation on the corrosion behavior of X65-welded structures in natural seawater. The evolution laws of surface corrosion morphology, residual stress, and areas of welded structures with the most serious corrosion damage were analyzed by microstructure observation, corrosion morphology observation, residual stress detection, and magnetic field detection. The results show that the main factors of determining surface corrosion morphology evolution law of welded structures are microstructures of the weld joint, heat-affected zone (HAZ), and the fusion line. Due to the difference of corrosion rates between the weld joint, HAZ, and the coarse Widmänstatten structure in fusion line, the fusion line of welded structures receives the most serious damage while being corroded. Meanwhile, mutual reinforcement of residual stress and corrosion damage on the surface of welded structures further accelerate the nucleation of corrosion cracks. Under the influences of microstructure, residual stress, and corrosion, corrosion cracks that are parallel to weld joints generate first in the fusion line of welded structures. Therefore, it makes welded structures the source of marine steel structures’ corrosion failure.

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Effect of electromagnetic interaction during fusion welding of AISI 2205 duplex stainless steel on the corrosion resistance

Cited by 26 publications

References 35 publications

Potentiodynamic Corrosion Behavior and Microstructural Characteristics of Pulsed CMT-Welded AA2014-T6 Aluminium Alloy Joints: Effect of PWHT

Potentiodynamic Corrosion Behavior and Microstructural Characteristics of Pulsed CMT-Welded AA2014-T6 Aluminium Alloy Joints: Effect of PWHT

Effect of Alternating Magnetic Field on the Organization and Corrosion Resistance of 2205 Duplex Stainless Steel Narrow-Gap Laser-MIG Hybrid Weld Head

Corrosion Crack Nucleation Mechanism in the Welded Structures of X65 Steel in Natural Seawater

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