Development of activated tungsten inert gas welding and its current status: A review

Fande, Ashish W.; Taiwade, Ravindra V.; Raut, Laukik P.

doi:10.1080/10426914.2022.2039695

Cited by 20 publications

(6 citation statements)

References 229 publications

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“…TiO 2 and SiO 2 (50:50) activated flux powder was used during ATIG welding. The utilization of SiO 2 flux resulted in the narrow weld bead primarily because of the prevalence of arc convergence, while TiO 2 flux contributed to the highest penetration depth by favouring the reversal of Marangoni convection [1,[20][21][22]. Consequently, in the previous work, enhanced weld bead cross-section by augmenting penetration depth and reducing the width of weld bead was noticed [7,23,24].…”

Section: Sample Preparation and Welding Process Parametersmentioning

confidence: 80%

Influence of inconel interlayer on microstructural, mechanical and electrochemical characteristics in single-pass ATIG welding of dissimilar austenitic and duplex stainless steel

Fande,

Kavishwar,

Tandon

et al. 2024

Mater. Res. Express

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This study investigates the impact of Inconel 625 interlayer on dissimilar welded low nickel austenitic stainless steel (LNiASS) and super duplex stainless steel (S32760) using activated tungsten inert gas (ATIG) welding. Two weldments were prepared: with and without (autogenous) interlayer. Geometrical investigation of the weld cross sections revealed that interlayer-based welding significantly increased the depth of penetration and decreased weld width as compared to autogenous welding at the same welding current. The dual microstructure was observed in the weld zone (WZ) of autogenous weldment while a fully austenitic structure with few intermetallics was observed in the WZ of interlayer-based weldment. Mechanical properties, particularly impact strength observed to be improved in the case of interlayer-based weldment (91±2 J) compared to autogenous weldment (68±2 J). Lower microhardness was noticed for the WZ of interlayer-based weldment (258±3 HV0.2) than WZ of autogenous (279±2 HV0.2) weldment due to the presence of higher content of Ni. However, the ultimate tensile strength of interlayer-based weldment (654 MPa), falls short in comparison to the autogenous weldment (693 MPa), indicating a compromised joint efficiency of 5.96%. The corrosion resistance was observed to be higher for the WZ of interlayer-based weldment attributed to the higher content of Ni and Mo. The sensitization study revealed a 47.33% degree of sensitization in the WZ of autogenous weldments due to dual microstructure, while interlayer-based weldments showed no sensitization.

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Section: Sample Preparation and Welding Process Parametersmentioning

confidence: 80%

Influence of inconel interlayer on microstructural, mechanical and electrochemical characteristics in single-pass ATIG welding of dissimilar austenitic and duplex stainless steel

Fande,

Kavishwar,

Tandon

et al. 2024

Mater. Res. Express

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“…Fillers may be used, but they are not always necessary. It includes gas welding [180][181][182], arc welding [183][184][185], resistance welding [186], and intense-energy beam welding [187]. The choice of method depends on the materials being joined and the desired properties of the welded joint.…”

Section: What Is Welding?mentioning

confidence: 99%

The Role of Metallurgical Features in the Microbially Influenced Corrosion of Carbon Steel: A Critical Review

Javed,

Ivanovich,

Messinese

et al. 2024

Microorganisms

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Microbially influenced corrosion (MIC) is a potentially critical degradation mechanism for a wide range of materials exposed to environments that contain relevant microorganisms. The likelihood and rate of MIC are affected by microbiological, chemical, and metallurgical factors; hence, the understanding of the mechanisms involved, verification of the presence of MIC, and the development of mitigation methods require a multidisciplinary approach. Much of the recent focus in MIC research has been on the microbiological and chemical aspects, with less attention given to metallurgical attributes. Here, we address this knowledge gap by providing a critical synthesis of the literature on the metallurgical aspects of MIC of carbon steel, a material frequently associated with MIC failures and widely used in construction and infrastructure globally. The article begins by introducing the process of MIC, then progresses to explore the complexities of various metallurgical factors relevant to MIC in carbon steel. These factors include chemical composition, grain size, grain boundaries, microstructural phases, inclusions, and welds, highlighting their potential influence on MIC processes. This review systematically presents key discoveries, trends, and the limitations of prior research, offering some novel insights into the impact of metallurgical factors on MIC, particularly for the benefit of those already familiar with other aspects of MIC. The article concludes with recommendations for documenting metallurgical data in MIC research. An appreciation of relevant metallurgical attributes is essential for a critical assessment of a material’s vulnerability to MIC to advance research practices and to broaden the collective knowledge in this rapidly evolving area of study.

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“…Welding encompasses various techniques, each tailored to specific applications and materials. Some prominent types include traditional methods such as arc welding (e.g., MIG, TIG, and stick welding) [1][2][3], oxy-acetylene welding [4], and more recent innovations such as laser welding [5]. Friction stir welding (FSW) has emerged as a cutting-edge alternative with distinct advantages over traditional welding methods [6].…”

Section: Introductionmentioning

confidence: 99%

A Review of Recent Developments in Friction Stir Welding for Various Industrial Applications

Bharti,

Kumar,

Singh

et al. 2023

JMSE

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Friction stir welding (FSW) has been recognized as a revolutionary welding process for marine applications, effectively tackling the distinctive problems posed by maritime settings. This review paper offers a comprehensive examination of the current advancements in FSW design, specifically within the marine industry. This paper provides an overview of the essential principles of FSW and its design, emphasizing its comparative advantages when compared with conventional welding techniques. The literature review reveals successful implementations in the field of shipbuilding and offshore constructions, highlighting design factors as notable enhancements in joint strength, resistance to corrosion, and fatigue performance. This study examines the progress made in the field of FSW equipment and procedures, with a specific focus on their application in naval construction. Additionally, it investigates the factors to be considered when selecting materials and ensuring their compatibility in this context. The analysis of microstructural and mechanical features of FSW joints is conducted, with a particular focus on examining the impact of welding settings. The study additionally explores techniques for mitigating corrosion and safeguarding surfaces in marine environments. The study also provides a forward-looking perspective by proposing potential areas of future research and highlighting the issues that may arise in the field of FSW for maritime engineering. The significance of incorporating environmental and economic considerations in the implementation of FSW for extensive marine projects is emphasized.

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Development of activated tungsten inert gas welding and its current status: A review

Cited by 20 publications

References 229 publications

Influence of inconel interlayer on microstructural, mechanical and electrochemical characteristics in single-pass ATIG welding of dissimilar austenitic and duplex stainless steel

Influence of inconel interlayer on microstructural, mechanical and electrochemical characteristics in single-pass ATIG welding of dissimilar austenitic and duplex stainless steel

The Role of Metallurgical Features in the Microbially Influenced Corrosion of Carbon Steel: A Critical Review

A Review of Recent Developments in Friction Stir Welding for Various Industrial Applications

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