Pitting corrosion behavior on crack property in AISI 304L weld metals with varying Cr/Ni equivalent ratio

Lee, D.J.; Jung, Kwang Hyo; Sung, J.H.; Kim, Y.H.; Lee, K.H.; Park, J.U.; Shin, Yu-Seon; Lee, H.W.

doi:10.1016/j.matdes.2009.01.023

Cited by 37 publications

(7 citation statements)

References 16 publications

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“…J. Lee et al [29] investigated the pitting corrosion behavior on welded joints of AISI 304L austenitic stainless steel with the flux-cored arc welding (FCAW) process. The dependence of pitting corrosion susceptibility on the microstructure and constituents was compared in weld metals by using three newly designed filler wires.…”

Section: Flux-cored Arc Welding (Fcaw)mentioning

confidence: 99%

A Review on Welding of AISI 304L Austenitic Stainless Steel

Prasad

Rao

2014

Journal for Manufacturing Science and Production

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AISI 304L is an austenitic Chromium-Nickel stainless steel offering the optimum combination of corrosion resistance, strength, and ductility. These attributes make it a favorite for many mechanical switch components. The low carbon content reduces susceptibility to carbide precipitation during welding. In the present paper a thorough review on welding of AISI 304L austenitic Stainless Steel by various welding processes was made. From the review it is understood that AISI 304L austenitic Stainless Steel is the best material where there is a problem of intergranular corrosion. Also it is one of the best materials frequently used in manufacturing non heat treatable components.

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Section: Flux-cored Arc Welding (Fcaw)mentioning

confidence: 99%

A Review on Welding of AISI 304L Austenitic Stainless Steel

Prasad

Rao

2014

Journal for Manufacturing Science and Production

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“…In addition, the limit exceeded the hardness in the fusion zone owing to the formation of carbide, martensite and an unsuitable amount of delta ferrite in the fusion zone. The amount of delta ferrite is a critical aspect of hot cracking occurrence and reported by Lee et al [5]. Thus, the selection of austenitic stainless steel filler wires and the process parameters are key to provide the quality of the welded joint.…”

Section: Introductionmentioning

confidence: 98%

Investigation of ER308L and ER309L filler wires on dissimilar metals between carbon steel and 3CR12 ferritic stainless steel by GTAW through boiler fabrication in a sugar factory

Luijan,

Surin,

Eidhed

2023

Mater. Res. Express

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Dissimilar metal welding is a popular process in very large coal and gold, power generation, and pulp and paper factories. It has mainly been applied to produce large boilers in sugar factories. The aim of the present study was to examine the characteristics of dissimilar metal welded joints made from carbon steel and 3CR12 ferritic stainless steel. The welding specimen was made from filler wires of ER308L and ER309L, and a gas tungsten arc welding process was employed for the V-shaped butt weld joints. The effects of the process parameters, such as the microstructural characteristics and mechanical properties, were investigated. The results from the welding parameters with filler wire of ER308L applied at 70A of welding current showed the microstructure of delta ferrite and austenite. In comparison, 100A of welding current presents delta ferrite, austenite, and martensite. Furthermore, carbide formation was not observed in the fusion zones of any of the experiments. When the ER308L filler wire was used, the amount of delta ferrite was higher than that of the ER309L filler wire, and the amount of delta ferrite increased with increasing hardness. In addition, the results of the filler wire of ER308L could replace the ER309L filler wire, which effectively reduces the material cost.

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“…The influence of filler metal on the mechanical, microstructural and corrosion behavior of dissimilar welds (low carbon and austenitic stainless steel 201 sheets) made by tungsten inert gas welding were explored [15]. The investigational outcomes were reported by adding oxygen in a small volume to the helium-argon mixture, as a result it significantly influences the shape of the weld from shallow to deep [16]. The effects of oxide flux on the arc voltage, weld profile, angular distortion, mechanical integrity and hot cracking sensitivity of the tungsten inert gas welding trials were investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of heat input and weld chemistry on mechanical and microstructural aspects of double side welded austenitic stainless steel 321 grade using tungsten inert gas arc welding process

Kumar

Shanmugam

2020

Materialwissenschaft Werkst

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Stainless steel 321 is a stabilized austenitic grade that prevents the formation of chromium carbides at the grain boundaries and subsequently reduces the risk of corrosion attack at the weld surface by forming titanium carbide. It is primarily used in industries such as pressure vessels, boilers, nuclear reactors, carburetors and car exhaust systems. In order to assess the effect of gas tungsten arc welding process parameters on weld penetration, the proposed Taguchi L9 orthogonal matrix has been selected with two factors and three levels for welding austenitic stainless steel 321 by adjusting the welding current and welding speed. Bead‐on‐plate experiments were performed on base metal of 6 mm thick plate by changing the process parameters, and corresponding weld bead measurement and macrostructure images are examined. Maximum depth of penetration −3.3017 mm is achieved with a heat input −1.4058 kJ/mm, i. e., welding current‐220 A and welding speed‐120 mm/min. Double‐side arc welding technique is used to obtain full penetration on 6 mm thick plate. The quality of the weldment was assessed using non‐destructive radiography inspection. Mechanical integrity and microstructural characteristics of the weldments were studied using tensile (transverse and longitudinal), bend, impact, microhardness, optical microscopy, energy dispersive x‐ray spectroscopy, x‐ray diffraction analysis, ferrite number measurement and scanning electron microscope. The results reveal that the double side‐tungsten inert gas weldment have better mechanical properties. It is corroborated from the weld metal microstructure that it contains γ‐austenite, δ‐ferrite and titanium carbides (intermetallic compounds). X‐ray diffraction analysis and energy dispersive x‐ray spectroscopy plots confirm the increase in the ferrite phase in weld metal. The ferrite measurement results show that the ferrite volume in the base metal and weld metal is 1.2 percent and 6.1 percent respectively. In addition, the higher δ‐ferrite volume in the weldment helps in attaining superior mechanical integrity. Fractography shows that the failure mode of the weld metal and the base metal is ductile.

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Pitting corrosion behavior on crack property in AISI 304L weld metals with varying Cr/Ni equivalent ratio

Cited by 37 publications

References 16 publications

A Review on Welding of AISI 304L Austenitic Stainless Steel

A Review on Welding of AISI 304L Austenitic Stainless Steel

Investigation of ER308L and ER309L filler wires on dissimilar metals between carbon steel and 3CR12 ferritic stainless steel by GTAW through boiler fabrication in a sugar factory

Effect of heat input and weld chemistry on mechanical and microstructural aspects of double side welded austenitic stainless steel 321 grade using tungsten inert gas arc welding process

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