Structure, surface properties and corrosion resistance of St 37 steel coated with PS/Ni-Ba-B duplex coatings

Rahmani, Sareh; Omrani, Abdollah; Shabanpanah, Sajede

doi:10.1016/j.surfcoat.2019.05.077

Cited by 3 publications

(3 citation statements)

References 47 publications

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“…37,39,40 Fortunately, this problem can be solved by introducing composite or multi-component (Si-Cr) coatings. 29,41 Recently, Hou et al 12 prepared a composite coating of Cr-AlN on the surface of FeCrAl-based oxide dispersionstrengthened (ODS) steel by pack-cementation technology, significantly improving the surface hardness and wear resistance. AlN is a non-toxic ceramic material with excellent properties, such as high resistivity, high-temperature stability, outstanding corrosion resistance and thermal conductivity, and a low thermal expansion coefficient close to Si.…”

Section: Introductionmentioning

confidence: 99%

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Gradient Cr–AlN composite coating prepared on alumina-forming austenitic steel

Zhang,

Feng,

Wang

et al. 2024

Surface Engineering

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A gradient composite coating of Cr–AlN with an outer Cr-rich layer and an inner AlN-rich layer was deposited on the alumina-forming austenitic (AFA) steel surface by pack-cementation chromising. The phase composition, element distribution, and microstructure of the coating were characterised and analysed. The microhardness and the friction and wear performance at 600 °C were tested. The results show that the outer Cr-rich layer mainly consists of a polycrystalline Cr–Fe solid solution and a small amount of Cr2C and (Cr, Fe)2N1− x particles. The inner layer contains plenty of AlN particles with different sizes dispersed on the Cr–Fe solid solution. The formation of AlN particles is closely related to the spontaneous chlorination and nitridation reaction. The addition of Y2O3 particles in the encapsulated powder promotes the uniformity of Cr plating and the growth of AlN particles. The gradient composite coating remarkably improves the microhardness and high-temperature wear resistance of AFA steel.

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Section: Introductionmentioning

confidence: 99%

“…37,39,40 Fortunately, this problem can be solved by introducing composite or multi-component (Si–Cr) coatings. 29,41…”

Section: Introductionmentioning

confidence: 99%

Gradient Cr–AlN composite coating prepared on alumina-forming austenitic steel

Zhang,

Feng,

Wang

et al. 2024

Surface Engineering

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“…For chromized samples, studies have pointed out that there is a carbon-poor layer (hardness lower than the substrate) existing between the Cr coating and steel substrate [11,13,16,17]. Fortunately, it has been reported that these shortcomings can be avoided by duplex coating or composite coating treatments [18][19][20][21][22]. Yilbas et al [23] developed a dual-layer coating on carbon steel, which consisted of a top layer that provided wear resistance and a bottom layer that provided corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Microstructure and Properties of Pre-Boronized Coatings During Pack-Cementation Chromizing

Zeng

Yang

et al. 2020

Coatings

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The effect of chromizing time on the microstructure and properties of B-Cr duplex-alloyed coating prepared by a two-step pack-cementation process was investigated. The phases, microstructure, and element distribution of three coatings obtained were characterized by X-ray diffraction (XRD), secondary electron imaging (SEI), backscattering electron imaging (BSEI), and energy dispersive spectroscopy (EDS), respectively. The results show that as the chromizing time increases, the net-like Fe2B and rod-like CrFeB phases in the coating gradually disappear, and finally completely transform into the block-like Cr2B and CrxCy (Cr7C3 and Cr23C6) phases. The growth kinetics analysis shows that interface reaction dominates the coating growth during the early stage of chromizing, while atomic diffusion gradually controls the coating growth at the later stage. The evolution mechanism of the B-Cr duplex-alloyed coating was also discussed.

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Electroless Plating of Ni-P/Ni-Mo-P Duplex Coating on 16Mn Steel Weld Joint and its Corrosion Resistance in Natural Seawater

Fu¹

2022

International Journal of Electrochemical Science

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A 16Mn steel plate is selected as the base substrate for welding, and a Ni-P/Ni-Mo-P duplex coating with Ni-P coating as the inner layer and Ni-Mo-P coating as the outer layer is prepared on the surface of weld joint by electroless plating. The appearance, surface morphology and composition of the substrate with and without Ni-P/Ni-Mo-P duplex coating were characterized, and the corrosion resistance of different coatings in seawater was compared and analyzed. The results show that the Ni-P single-layer coating, Ni-Mo-P single-layer coating and Ni-P/Ni-Mo-P duplex coating cover the weld joint completely showing a nodular morphology. The porosity of Ni-P/Ni-Mo-P duplex coating is only 1.2 spot/cm 2 for the best corrosion resistance, and its surface density is better than that of the Ni-P single-layer coating and Ni-Mo-P single-layer coating. Compared with the substrate, the corrosion current density of Ni-P/Ni-Mo-P duplex coating is reduced by nearly two orders of magnitude, and the protection efficiency reaches 98.5%, which can play a better role in corrosion protection and significantly improve corrosion resistance of 16Mn steel in natural seawater.

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Structure, surface properties and corrosion resistance of St 37 steel coated with PS/Ni-Ba-B duplex coatings

Cited by 3 publications

References 47 publications

Gradient Cr–AlN composite coating prepared on alumina-forming austenitic steel

Gradient Cr–AlN composite coating prepared on alumina-forming austenitic steel

Evolution of the Microstructure and Properties of Pre-Boronized Coatings During Pack-Cementation Chromizing

Electroless Plating of Ni-P/Ni-Mo-P Duplex Coating on 16Mn Steel Weld Joint and its Corrosion Resistance in Natural Seawater

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