Effects of Al and Ti additions on corrosive–wear and electrochemical behaviors of laser cladded FeSiB coatings

Zhou, Jiali; Dejun, Kong

doi:10.1016/j.optlastec.2019.105958

Cited by 17 publications

(7 citation statements)

References 45 publications

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“…From the above analysis, it can be seen that the wear rate gradually increased with the increase of load and the COFs first increased and then decreased, with no obvious corrosion phenomenon. During the corrosive–wear test, the complex interactions between the corrosion solution and the abrasive debris led to accelerating the coating wear (Liu et al , 2018; Zhou and Kong, 2020). The mechanism was shown that: the part of abrasive debris cut into the surface of the worn track and another part was pressed into the surface of worn track under the wear load to form the abrasive wear; the cracks, scratches and pits were caused by wear, which decreased the contact area between the coating and the corrosive solution to accelerate the corrosion process; some corrosion products were acted as abrasive debris to accelerate the wear process, while some corrosion products were discharged from the friction system. …”

Section: Analysis and Discussionmentioning

confidence: 99%

Corrosive wear and electrochemical corrosion performances of arc sprayed Al coating in 3.5% NaCl solution

Huang

Dejun

2021

ACMM

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Purpose The purpose of this paper is to investigate the effects of load and speed on the corrosive wear performance of Al coating in 3.5% NaCl solution, which provided an experimental reference for the anti-corrosion engineering on offshore platforms. Design/methodology/approach A layer of Al coating was prepared on S355 steel using an arc spraying. The corrosive wear test was carried out with CFT–1 type surface property tester. The effects of load and speed on the corrosive wear performance of Al coating were investigated and the wear mechanism was also discussed. The electrochemical tests were conducted using a CHI660E type electrochemical workstation, the anti-corrosion mechanism was analyzed. Findings The average coefficient of frictions (COFs) of Al coating under loads of 1.5, 2.5 and 3.5 N are 0.745, 0.847 and 0.423, the wear mechanism is abrasive wear. The average COFs of Al coating at the speeds of 200, 400 and 600 rpm are 0.745, 0.878 and 0.617, respectively, the wear mechanism at the speeds of 200 and 400 rpm are abrasive wear, while that at the speed of 600 rpm is abrasive wear and fatigue wear. The anti-corrosion mechanism is the isolation of Cl– corrosion and cathodic protection of sacrificial anode. Originality/value This paper mainly studied corrosive wear and electrochemical corrosion performances of Al coating. This study hereby confirms that this manuscript is the original work and has not been published nor has it been submitted simultaneously elsewhere. This paper further confirms that all authors have checked the manuscript and have agreed to the submission.

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Section: Analysis and Discussionmentioning

confidence: 99%

Corrosive wear and electrochemical corrosion performances of arc sprayed Al coating in 3.5% NaCl solution

Huang

Dejun

2021

ACMM

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“…Figure 11(a) shows the morphology of the worn tracks on the substrate. From the low-magnification image, the profile of the worn tracks was obvious, while in the high-magnification image, there were obvious furrows on the worn track [30,33]. As a result, the wear mechanism was concluded to be abrasive wear [34].…”

Section: Morphologies Of Worn Tracksmentioning

confidence: 97%

Microstructure, tribological performances, and wear mechanisms of laser-cladded TiC-reinforced NiMo coatings under grease-lubrication condition

Zhu

Dejun

2021

Materials Science-Poland

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NiMo-5%TiC, NiMo-15%TiC, and NiMo-25%TiC coatings were prepared on GCr15 steel by laser cladding (LC). The microstructure and the phases of the obtained coatings were analyzed using ultra-depth-of-field microscopy (UDFM) and X-ray diffraction (XRD), respectively. A ball-on-disk wear test was used to analyze the friction-wear performance of the substrate and the NiMo-TiC coatings under grease-lubrication condition. The results show that the grain shape of NiMo-TiC coatings is dendritic. The wear resistance of NiMo-TiC coatings is improved by the addition of TiC, and the depths of the worn tracks on the substrate and on the NiMo-5%TiC, NiMo-15%TiC, and NiMo-25%TiC coatings are 4.183 μm, 2.164 μm, 1.882 μm, and 1.246 μm, respectively, and the corresponding wear rates are 72.25 μm3/s/N, 32.00 μm3/s/N, 18.10 μm3/s/N, and 7.99 μm3/s/N, respectively; this shows that the NiMo-25%TiC coating has the highest wear resistance among the three kinds of coatings. The wear mechanism of NiMo-TiC coatings is abrasive wear, and the addition of TiC plays a role in resisting wear during the friction process.

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“…However, the wear and corrosion resistance of Febased alloy cladding layers are limited, which cannot meet the performance requirements of some application fields [4][5][6]. Therefore, researchers have considered to add alloying elements into Fe-based alloy to improve the properties of the coatings [7][8][9][10][11][12][13]. For example, Gao et al [10] studied the effect of Ti content on the microstructure and hardness of laser cladding Fe-based coating.…”

Section: Introductionmentioning

confidence: 99%

“…The addition of Ni can form a NiO passive film on the coating surface, which helped improve the corrosion resistance. They also studied the effect of Al and Ti elements on FeSiB laser cladding coatings [12]. The results showed that Al was beneficial to improve the wear and corrosion resistance of the coating.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure, wear and electrochemical behaviors of laser cladding Fe-based coatings with various molybdenum contents

Li¹,

Wang²,

Zhang³

et al. 2022

Mater. Res. Express

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Fe-based alloy coatings with different Mo contents were fabricated on 45 steel substrates by laser cladding. X-ray diffractometer (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) were used to analyze the phase composition and microstructural evolution of the coatings. The effects of Mo addition on the wear and electrochemical behaviors of the coatings were analyzed by ball-on-disc wear tester and electrochemical workstation. The results showed that the addition of Mo could help refine grains and promote the transition of dendrites to equiaxed grains. With the increase of Mo content, the hard phases changed from Fe2B to Mo2FeB2. Mo and Cr tend to aggregate in the intercrystalline regions in the form of hard phases. When the Mo content was 4.8 wt.%, the hardness increased by 3.6 times compared with that of the substrate. The wear resistance of the coatings increased with the Mo addition. Mo played the role of fine grain strengthening and solid solution strengthening, which was beneficial for the improvement of the hardness and wear resistance. Polarization curves and electrochemical impedance spectroscopy test results revealed that the addition of Mo could improve the corrosion resistance of Fe-based coating.

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Effects of Al and Ti additions on corrosive–wear and electrochemical behaviors of laser cladded FeSiB coatings

Cited by 17 publications

References 45 publications

Corrosive wear and electrochemical corrosion performances of arc sprayed Al coating in 3.5% NaCl solution

Corrosive wear and electrochemical corrosion performances of arc sprayed Al coating in 3.5% NaCl solution

Microstructure, tribological performances, and wear mechanisms of laser-cladded TiC-reinforced NiMo coatings under grease-lubrication condition

Microstructure, wear and electrochemical behaviors of laser cladding Fe-based coatings with various molybdenum contents

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