Failure Assessment and High-Temperature Corrosion Behavior of Inconel 625 Welds in Simulated K2SO4 + 60% NaCl Boiler Environment

Prabu, S. Senthur; Arivarasu, M.; Sujai, S.; Beemkumar, N.; Elangovan, K.

doi:10.1007/s11665-023-07923-4

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…The working temperature in boiler environments ranges from 500°C to 900°C. 4,5 When boiler components are subjected to high temperatures, a layer of oxide scale develops on their surfaces as a protective measure. The combination of salt species with the protective oxide layer leads to the dissolution of the oxide, leaving the component vulnerable to corrosion.…”

Section: Introductionmentioning

confidence: 99%

Review of Thermal Spray Coatings Perform in Protecting Boiler Steels Against Corrosion at High Temperatures

Bhagria,

Goyal,

Deepak

2023

Mat. Sci. Res. India

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Failure of boilers can cause huge economic loss to the power plants. In high temperature and aggressive working conditions erosion, hot corrosion and abrasions are most responsible factors for failure of boiler steels. Thermal spray coatings are the preferable method to minimize the cause of failures of the boiler steels due to these problems. Among different thermal spray techniques. By utilizing the HVOF process, it is possible to produce coatings with high micro-hardness and low porosity, making it an advanced and effective method that is currently undergoing rapid development. In this paper a review study regarding the performance of thermal spray coatings deposited on boiler steels against the hot corrosion has been presented. The outcomes of this research have the potential to assist in identifying the optimal coating combination and application technique to prevent the deterioration of boiler steels.

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Section: Introductionmentioning

confidence: 99%

Review of Thermal Spray Coatings Perform in Protecting Boiler Steels Against Corrosion at High Temperatures

Bhagria,

Goyal,

Deepak

2023

Mat. Sci. Res. India

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Effect of Filler Wires on Welding Strength and Microstructural Changes of Inconel 718 and AISI 316L Dissimilar Weldments

Yelamasetti,

Sonar,

2024

MATEC Web Conf.

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In this research, the effect of fillers wires on weldability, welding strength and structural changes of dissimilar welds of Inconel 718 and AISI 316L are studied. Pulse arc mode in TIG welding with multiple passes were used to join V-groove configuration with 1.6 mm filler diameter. Constant welding parameters were used for both the weldments to study the effect of alloying elements of filler wires. Tensile properties were evaluated by conducting tensile test on universal testing machine as per ASTM E/8 standards. To reveal the structural changes at various zones of weldment, optical microscope was utilized. The dissimilar metals were joined successfully using two-filler wires without any internal defects. The highest tensile strength of 553 MPa was observed in Hastelloy filler weldment when compared with ERNiCrMo-4 filler weldment (530 MPa). Also, the better yield strength properties were observed in Hastelloy filler weldment. Well defined with clear grain boundaries were observed in both the filler weldments. Due to the pulsed arc mode, segregation of alloying elements was reduced.

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Effect of Cr on the high-temperature corrosion of dissimilar AISI 904L and Inconel 625 joints employed in the coal-fired thermal power plant tubes

Senthur Prabu,

Muthu,

Sujai

et al. 2024

Materials at High Temperatures

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Failure Assessment and High-Temperature Corrosion Behavior of Inconel 625 Welds in Simulated K2SO4 + 60% NaCl Boiler Environment

Cited by 3 publications

References 33 publications

Review of Thermal Spray Coatings Perform in Protecting Boiler Steels Against Corrosion at High Temperatures

Review of Thermal Spray Coatings Perform in Protecting Boiler Steels Against Corrosion at High Temperatures

Effect of Filler Wires on Welding Strength and Microstructural Changes of Inconel 718 and AISI 316L Dissimilar Weldments

Effect of Cr on the high-temperature corrosion of dissimilar AISI 904L and Inconel 625 joints employed in the coal-fired thermal power plant tubes

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