A Review: Welding by Laser Beam of Dissimilar Metals

Boumerzoug, Zakaria

doi:10.31031/amms.2021.08.000683

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…The high production rate makes LBW suitable for high productivity in series; furthermore, the investment resources in laser equipment are well compensated, due to the good performances and cost savings achieved for different pairs of dissimilar metals [5].…”

Section: Laser Beam Weldingmentioning

confidence: 99%

“…Fusion welding processes can be specifically applied to connect low-carbon or lowalloy steel components to those made of high-alloy steels, which are better suited to low-or elevated-temperature service in the adverse environments typical of petrochemical and nuclear power plants (see [4] for a review on the arc welding of dissimilar steels, and [5] for a review on the LBW of dissimilar metals). The usefulness of having the peculiar characteristic of good corrosion resistance on one side of the joint is achieved by welding at lower cost compared to the sole use of the high-alloy metal (for a summary of the common issues in the fusion welding of dissimilar steels, see the article by Ekeh et al [6]).…”

Section: Introductionmentioning

confidence: 99%

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A Review on Fusion Welding of Dissimilar Ferritic/Austenitic Steels: Processing and Weld Zone Metallurgy

Giudice,

Missori,

Scolaro

et al. 2024

JMMP

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Dissimilar welds between ferritic and austenitic steels represent a good solution for exploiting the best performance of stainless steels at high and low temperatures and in aggressive environments, while minimizing costs. Therefore, they are widely used in nuclear and petrochemical plants; however, due to the different properties of the steels involved, the welding process can be challenging. Fusion welding can be specifically applied to connect low-carbon or low-alloy steels with high-alloy steels, which have similar melting points. The welding of thick plates can be performed with an electric arc in multiple passes or in a single pass by means of laser beam equipment. Since the microstructure and, consequently, the mechanical properties of the weld are closely related to the composition, the choice of the filler metal and processing parameters, which in turn affect the dilution rate, plays a fundamental role. Numerous technical solutions have been proposed for welding dissimilar steels and much research has developed on welding metallurgy; therefore, this article is aimed at a review of the most recent scientific literature on issues relating to the fusion welding of ferritic/austenitic steels. Two specific sections are dedicated, respectively, to electric arc and laser beam welding; finally, metallurgical issues, related to dilution and thermal field are debated in the discussion section.

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Section: Laser Beam Weldingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review on Fusion Welding of Dissimilar Ferritic/Austenitic Steels: Processing and Weld Zone Metallurgy

Giudice,

Missori,

Scolaro

et al. 2024

JMMP

View full text Add to dashboard Cite

show abstract

“…Fusion welding processes can be specifically addressed to connect low-carbon or low-alloy steels components to those made of high-alloy steels, which are better suited to low or elevated temperature service in the adverse environments typical of petrochemical and nuclear power plants (see [4] for a review on arc-welding of dissimilar steels, and [5] for a review on laser beam welding (LBW) of dissimilar metals). The usefulness of having on one side of the joint the peculiar characteristic of good corrosion resistance is achieved by welding at lower cost compared to the sole use of the high alloyed metal (for a summary of the common issues in fusion welding of dissimilar steels see the article of Ekeh et al [6]).…”

Section: Introductionmentioning

confidence: 99%

A Review on Fusion Welding of Dissimilar Ferritic / Austenitic Steels: Processing and Weld Metallurgy

Giudice,

Missori,

Scolaro

et al. 2024

Preprint

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Dissimilar welds between ferritic and austenitic steels represent a good solution for exploiting the best performance of stainless steels at high and low temperatures and in aggressive environments, while minimizing costs. Therefore, they are widely used in nuclear and petrochemical plants, however, due to the different properties of the steels involved, the welding process can be challenging. Fusion welding can be specifically addressed to connect low-carbon, or low-alloy steels, with high-alloy steels, which have similar melting point. Welding of thick plates can be performed with electric arc in multiple passes or in a single pass by means of a laser beam equipment. Since microstructure and consequently mechanical properties of the weld are closely related to composition, the choice of the filler metal and processing parameters, which in turn affects the dilution rate, plays a fundamental role. Numerous technical solutions were proposed for welding dissimilar steels and much research was developed on the weldment metallurgy; therefore, this article is aimed at a review of the most recent scientific literature on the issues relating to the fusion welding of ferritic / austenitic steels. Two specific sections are dedicated respectively to electric arc and laser beam welding; finally, metallurgical issues, related to dilution and thermal field are debated in the discussion section.

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