A Study of Multi-Pass Laser-Cladding 2205 Duplex Stainless Steel Coating: Microstructure, Electrochemical Corrosion Behavior, and Wear-Resistance Properties

Huang, Feifei; Liu, Erju; Qin, Yi; Jin, Ying; Wen, Liping; Chang, Hai

doi:10.3390/coatings12020229

Cited by 5 publications

(1 citation statement)

References 33 publications

(39 reference statements)

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“…These properties make DSS a popular study topic. The elements in the steel form a passive film on the surface when exposed to oxygen [3,4]. The passive film protects the steel from aggressive chemical species, particularly pitting corrosion [5,6].…”

Section: Introductionmentioning

confidence: 99%

Study of the Passivation Film on S32750 Super-Duplex Stainless Steel Exposed in a Simulated Marine Atmosphere

Yang

Du²,

Wu³

et al. 2022

Coatings

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The corrosion behavior and passivation mechanism of S32750 super-duplex stainless steel exposed in a simulated marine atmosphere were studied using electrochemical methods, XPS and SEM. Passivation and local corrosion occurred on the metal surface when S32750 SDSS was exposed in the simulated marine atmospheric environment. The passivation film is composed of two chromium-enriched layers. The outer layer is a very thin film at the metal/atmosphere interface of the specimen surface with higher chromium content, whereas the chromium in the inner layer seems a little depleted. The outer and inner layers had similar Fe components, and Fe3+ oxide/hydroxide was the primary oxide in the film. The outer layer contains CrO3, whereas the inner layer has Cr3+ as its primary oxide. Pitting occurred when exposure time exceeded 24 d, and the Cr content of the specimen decreased. Therefore, S32750 SDSS exposed for 24 d exhibited the best corrosion resistance.

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Section: Introductionmentioning

confidence: 99%

Study of the Passivation Film on S32750 Super-Duplex Stainless Steel Exposed in a Simulated Marine Atmosphere

Yang

Du²,

Wu³

et al. 2022

Coatings

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Surface quality optimization of laser cladding based on surface response and genetic neural network model

Zhang¹,

Xu²,

Sun³

et al. 2022

Surf. Topogr.: Metrol. Prop.

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The surface roughness is a main performance parameter to characterize the quality of the macroscopic morphology in laser cladding multi-lap forming of key parts. In this paper, both the Taguchi and the Box-Behnken Design (BBD) experiments were used to conduct the laser cladding multi-channel lap experiment. The relationship between the process parameters regarding laser power, powder feeding speed, scanning speed, lap rate and the surface roughness of the coating was illustrated via experiments. The neural network model (Genetic Algorithm-Back Propagation, GA-BP) and response surface methodology (RSM) optimized by genetic algorithm were established, respectively. Furthermore, the optimal cladding parameters were optimized, and the coupling effect between the cladding process and the forming quality of the multi-channel lap was revealed. It is found that the root mean square error (RMSE) and absolute average deviation (AAD) of GA-BP model were both smaller than those of the RSM model. The coefficient of determination R-Squared of GA-BP model was closer to 1. Moreover, the minimum roughness of 20.89 μm by optimizing the process parameters through the genetic neural network model was lower than the surface response optimization of 35.67μm. The genetic neural network model optimized by genetic algorithm can improve the prediction accuracy on the surface macro-quality of multi-channel lap cladding layer, which provides a theoretical basis and technological direction for the improvement of the surface quality of key parts.

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Investigating the wear resistance of AISI 410/AISI 2205 hybrid weld cladding on annealed EN 8 medium carbon steel

Mukherjee,

Sarkar,

Barman

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part J:

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A new multi-layer and multi-material hybrid configuration of weld cladding an annealed EN 8 substrate has been developed and investigated. The AISI 410 martensitic stainless steel is used as the bottom and top clad layers and the AISI 2205 duplex stainless steel is used as the middle weld cladding layer which creates a composite multi-material clad structure with distinct interfacial characteristics. Examination of microstructure unveiled lamellar morphology of the top layer with martensitic-austenitic constituents with maximum hardness, whereas the intermediate layer exhibited ferritic-austenitic morphology with lower hardness. The bottom layer exhibited a tempered martensite structure with a relatively smaller grain size and exhibited intermediate hardness. The bottom-substrate interface displaying the highest interfacial hardness, followed by the middle-bottom interface and the top-middle interface in descending order. Incorporation of AISI 2205 in the intermediate contributed to an increased toughness of 30 MPa√m. During the ball-on-flat sliding wear test, the coefficient of friction displayed an intriguing pattern after a critical load threshold. Higher applied loads led to decreased absorbed energy and a reduction in wear track dimensions. Elevated heat levels promoted tribofilm formation, contributing to lower wear rates, with the optimum condition observed at 7 N, displaying the lowest volumetric loss and wear rate. The primary wear mechanism predominantly involved plastic deformation and plowing, with no apparent indications of brittle fracture.

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A Study of Multi-Pass Laser-Cladding 2205 Duplex Stainless Steel Coating: Microstructure, Electrochemical Corrosion Behavior, and Wear-Resistance Properties

Cited by 5 publications

References 33 publications

Study of the Passivation Film on S32750 Super-Duplex Stainless Steel Exposed in a Simulated Marine Atmosphere

Study of the Passivation Film on S32750 Super-Duplex Stainless Steel Exposed in a Simulated Marine Atmosphere

Surface quality optimization of laser cladding based on surface response and genetic neural network model

Investigating the wear resistance of AISI 410/AISI 2205 hybrid weld cladding on annealed EN 8 medium carbon steel

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