Research on interface characteristics of 308L stainless steel coatings manufactured by laser hot wire cladding

Li, Wenquan; Liu, Xingang; Yamamoto, Mikio; Guo, Ying; Zhu, Song; Sugio, Kenjiro; Sasaki, Gen

doi:10.1016/j.surfcoat.2021.127822

Cited by 14 publications

(6 citation statements)

References 45 publications

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“…During solidification, δ-ferrite is the starting phase and follows austenitic transformation by a peritectic-eutectic reaction. 14 Most of the ferrite is transformed into austenite and a small fraction of ferrite is retained due to constitutional supercooling. The transformation of ferrite to austenite will happen till the temperature decreases and until preventing the elemental diffusion.…”

Section: Resultsmentioning

confidence: 99%

“…Multi-layer weld overlaying leads to complex cyclic thermal history influencing the microstructure and mechanical features. 14,15 According to the existing literature, various studies have been made on the CR of Ni-Cr-Mo coatings and the various steel welds in salt environments. [16][17][18] Based on the mentioned literature, the research attempts emphasized the multilayer deposition of stainless steels, Ni-based superalloys as a coating material, and the influence of alloying elements on the microstructure and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Investigations on the 308L clad deposits revealed a dendritic structure with δ-ferrite in the austenitic matrix without any precipitates and the δ-ferrite was 9% on the clad layers. 14 Li et al 15 reported that the laser-cladded 308L on a 316L substrate revealed an average ferrite percentage of 10.48 in the austenitic matrix. This increase in the ferrite volume is attributed to the deposition of successive clad layers.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure and electrochemical evaluation of ER-308L weld overlays on AISI 321 stainless steel for repair applications

Kumar

Sreedhar

Kumar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Weld overlaying is a promising and economical solution for repairing stainless steel structures. The present work deals with the deposition of ER-308L weld overlays on AISI 321 plate with Robotic gas metal arc welding setup. Microstructural examination depicts the presence of dendritic structures (equiaxed and columnar) and ferritic stringers. Energy-dispersive X-ray analysis confirmed the absence of precipitates and phases susceptible to corrosion in the as-deposited weld overlays. Specimens from ER-308L (weld overlay) and ER-308L&321-SS (interface) regions were subjected to electrochemical analysis using the Potentiodynamic polarization and double-loop electrochemical potentiokinetic reactivation measurements. Both overlay and interface sections exhibited comparable corrosion rate – 3.30 and 3.62 mils penetration per year, respectively with different passivation behaviour. The improved passivation behaviour of the ER-308L weld overlay authenticates the presence of δ-ferrite stringers. Double-loop electrochemical potentiokinetic reactivation tests highlighted the absence of sensitization on both weld overlay and interface specimens. This study presents the initial assessment results for repairing structural steel components subjected to corrosion damage.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure and electrochemical evaluation of ER-308L weld overlays on AISI 321 stainless steel for repair applications

Kumar

Sreedhar

Kumar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Finally, by reducing the bead width while increasing the bead height, a more rounded ball-shaped bead is formed (Figure 5d). The calculation method for dilution rate is shown in Figure 5e [28]. applications.…”

Section: Single-pass Single-layer Welding Seam Formation Testmentioning

confidence: 99%

The Effects of Processing Parameters during the Wire Arc Additive Manufacturing of 308L Stainless Steel on the Formation of a Thin-Walled Structure

Liu,

Lan,

Liu

et al. 2024

Materials

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Wire arc additive manufacturing (WAAM) excels in producing medium to large components with a high deposition rate. Process optimization is crucial for uniform, defect-free components. This research employs orthogonal experimental design and response surface methodology (RSM) to control TIG WAAM-ed 308L stainless steel components. Varied parameters, including tungsten electrode angle, welding current, and speed, target weld bead attributes. Analysis of variance (ANOVA) evaluates multi-processing parameter influence on weld bead formation. Comparison with experimental results confirms accurate modeling of the relationship between parameters and bead attributes. The study optimizes process parameters and swing to enhance dimensional accuracy in single-layer and multi-layer components, improving precision, quality, and accuracy in thin-walled structures.

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Corrosion Behavior of Cobalt–Chromium‐Based Laser Claddings Reinforced with Boron Nitride, Graphene Oxide, and Graphite.

García‐Blanco,

Bozeman,

Tucker

et al. 2024

Adv Eng Mater

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In this article, the corrosion resistance of a cobalt–chromium‐based laser cladding reinforced with different microparticles: boron nitride, graphene oxide, and graphite, added for increased tribological performance, is explored. Samples are fabricated by premixing cobalt–chromium powder with microparticle additions and cladding onto 316L stainless steel base metal. The corrosion behavior is measured in industrially relevant applications: 1 m acetic acid and 3.5 wt% NaCl, using open‐circuit potential, electrochemical impedance spectroscopy, linear polarization resistance, and cyclic polarization. Laser ablation–inductively coupled plasma–mass spectrometry is used to analyze the distribution of the chemical elements throughout the coatings. The reference cladding's corrosion resistance is outstanding in both electrolytes, with a corrosion rate (CR) of ≤0.19 μm year−1 and no pitting tendencies. With the addition of microparticles, the claddings maintain their remarkable pitting resistance, but show an increase in CR up to 0.98 μm year−1 due to the nonuniform distribution of the microparticles into the matrix.

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Research on interface characteristics of 308L stainless steel coatings manufactured by laser hot wire cladding

Cited by 14 publications

References 45 publications

Microstructure and electrochemical evaluation of ER-308L weld overlays on AISI 321 stainless steel for repair applications

Microstructure and electrochemical evaluation of ER-308L weld overlays on AISI 321 stainless steel for repair applications

The Effects of Processing Parameters during the Wire Arc Additive Manufacturing of 308L Stainless Steel on the Formation of a Thin-Walled Structure

Corrosion Behavior of Cobalt–Chromium‐Based Laser Claddings Reinforced with Boron Nitride, Graphene Oxide, and Graphite.

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