Meso and microscale clad interface characteristics of hot-rolled stainless steel clad plate

Liu, B.X.; Wang, S.; Fang, Wei; Yin, Fuxing; Chen, C.X.

doi:10.1016/j.matchar.2018.12.008

Cited by 60 publications

(17 citation statements)

References 73 publications

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“…For stainless steel clad plate, many studies report that there is an element diffusion layer between stainless steel and carbon steel [12,13]. Further studies show that carbon diffusion occurs between carbon steel and stainless steel clad plate, which results in the formation of a decarburization layer in the carbon steel side, and a carburization layer in the stainless steel side, respectively [14,15,16]. Compared to carbon steel and stainless steel, the decarburization layer and carburization layer have different microstructures and mechanical properties which could affect the mechanical performance of clad plate.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Characterization and Mechanical Properties of Stainless Steel Clad Plate

Zhang

et al. 2019

Materials

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In this study the microstructure and mechanical properties of stainless steel clad plate are researched. Due to element diffusion (Fe, Cr, Ni, Mn), a 20 μm thick diffusion layer is formed between stainless steel and carbon steel clad plate. The diffusion layer has a stable mechanical performance without obvious grain microstructure, and its internal mechanical properties show a graded change in the thickness direction. This is beneficial to a strong bond between stainless steel and carbon steel and the stable transition of mechanical performance in the thickness direction, as well as further carbon diffusion changes in the microstructure and mechanical properties near the diffusion layer of clad plate. Carburization stainless steel with a thickness of 150 μm is formed in the stainless steel side and decarburization carbon steel with a thickness of 80 μm is formed in the carbon steel side.

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Section: Introductionmentioning

confidence: 99%

Microstructure Characterization and Mechanical Properties of Stainless Steel Clad Plate

Zhang

et al. 2019

Materials

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“…Many previous works have also reported on the carbon diffusion that occurs between stainless steel and carbon steel in the bimetal plate, and it is believed that the carburized layer in the bimetal plate has a worse corrosion resistance than stainless steel. rough TEM and SAED analysis, Liu et al found that there were carbides (mostly M 23 C 6 ) on the grain boundaries of the carburized layer in the bimetal plate, and the carbon decrease made pearlite disappear from the decarburized layer in the bimetal plate [31,32]. According to XRD and TEM results, Yu et al revealed the carbon diffusion process between carbon steel and stainless steel in the bimetal plate and thought that carbon diffusion occurred during the manufacturing process of bimetal plate.…”

Section: Resultsmentioning

confidence: 99%

Effect of Heat Treatment on the Microstructure and Corrosion Resistance of Stainless/Carbon Steel Bimetal Plate

Zhang

et al. 2020

Advances in Materials Science and Engineering

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In order to research the effect of heat treatment on the microstructure and corrosion resistance of stainless/carbon steel bimetal plate, the annealing process at 700°C with different times was carried out for stainless/carbon steel bimetal plate. Because the carbon content of carbon steel was higher than that of stainless steel, the carbon would diffuse from carbon steel to stainless steel in the bimetal plate during the annealing process. e carbon diffusion would cause the thickness of the decarburized layer in carbon steel and the carbon content of stainless steel to increase. e carbon diffusion would be ongoing with the annealing process until the carbon content of stainless steel reached 0.08%. e higher carbon content could help in the formation of more chromiumdepleted regions in the stainless steel surface, causing the stainless steel in the bimetal plate to have a poorer surface corrosion resistance than that of stainless steel under the same annealing conditions.

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“…They found that the bonding mechanism of hot-rolled stainless steel clad based on the oxide film theory, diffusion theory, recrystallization theory, and three stage theory. Liu et al [20] also found that he interface with a thickness of 300-400 nm contains refined grains accompanying with many Cr 23 C 6 and MnSi 2 O 4 , SiO 2 particles.…”

Section: Introductionmentioning

confidence: 94%

Effect of Interlayers on Microstructure and Properties of 2205/Q235B Duplex Stainless Steel Clad Plate

Xiao

Wang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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In this research, 2205/Q235B clad plates were prepared by a vacuum hot rolling composite process. The effects of adding Fe, Ni, and Nb interlayers on the bonding interface structures and the shear strengths of the clad steel plates were studied. The results showed that 2205 duplex stainless steel and the three interlayers produced a large amount of plastic deformation and low-angle boundaries, and the main structures were the recrystallized and deformed grains. There were many recrystallized grains in the microstructure of the Q235B low-carbon steel due to the low deformation in the rolling process. The Fe interlayer had better wettability with the two kinds of steel, but the lower strength led to the reduction of shear strength by about 14 MPa compared with the original clad steel plate. The C element in the Q235B low-carbon steel easily diffused into the Fe interlayer, and the clad steel plate attained a poor corrosion resistance because a large decarburization area was formed. The Nb interlayer reacted with the Mo element in the 2205 duplex stainless steel to form an Nb-Mo binary alloy, which generated long-banded ferrite. The decarburization area was also produced because the Nb reacted with the C element in the Q235B to form hard and brittle NbCx. As a result, the shear strength was significantly reduced by about 282 MPa, and the corrosion resistance of the bonding surface was deteriorated. The Ni interlayer did not react with the alloy elements in both sides, and therefore effectively prevented element diffusion and improved the corrosion resistance of the bonding surface. Due to the low strength of the Ni interlayer and the increased number of bonding surfaces of the clad steel plates, the shear strength was reduced to some extent (about 40 MPa), but it still met the engineering application standards.

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Meso and microscale clad interface characteristics of hot-rolled stainless steel clad plate

Cited by 60 publications

References 73 publications

Microstructure Characterization and Mechanical Properties of Stainless Steel Clad Plate

Microstructure Characterization and Mechanical Properties of Stainless Steel Clad Plate

Effect of Heat Treatment on the Microstructure and Corrosion Resistance of Stainless/Carbon Steel Bimetal Plate

Effect of Interlayers on Microstructure and Properties of 2205/Q235B Duplex Stainless Steel Clad Plate

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