Effect of further alloying elements on corrosion resistance of Ni-Cr alloys in molten glass

Xu, Yaxin; Yan, Jingbo; Sun, Fei; Ikeda, Teruyuki

doi:10.1016/j.corsci.2016.09.007

Cited by 20 publications

(4 citation statements)

References 22 publications

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“…1,10 The unique mechanical properties of Ni-Cr based alloys, such as excellent resistance to oxidation and hot corrosion, have classified them amongst the popular superalloys with a wide range of engineering applications and thus, are used for important structural materials. 11,12 Nevertheless research has shown that their extensive usage in aero-engine is limited by their high specific density. 1 However, it has been reported that Ni-Cr alloys can be reinforced with hard particles like carbides and oxides to reduce their specific density and widen their usage in aero-engines.…”

Section: Introductionmentioning

confidence: 99%

Spark plasma sintering of ZrO₂ reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Oketola

Jamiru

Adegbola

et al. 2022

Journal of Composite Materials

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Ni-Cr-ZrO2 composites with varying amounts of ZrO2 additive (5 wt%, 7.5 wt%, 10 wt% and 12.5 wt%) were fabricated using spark plasma sintering method at a sintering temperature of 1000°C, heating rate of 100°C/min, holding time of 5 min, and a pressure of 50 MPa. The effect of ZrO2 addition on the microstructure, tribological and mechanical properties of the developed composites were studied. The results showed that maximum densification was attained at 10 wt% ZrO2. Further increase in the fractions of ZrO2 within the composites results in a decrease in the relative density of the sintered composite. A significant increase in hardness from 433.24 HV to 510.11 HV and elastic modulus from 252.67 GPa to 294.6 GPa was observed in the fabricated samples as the ZrO2 content increase from 5 to 12.5 wt%. An appreciable improvement in the wear performance of the sintered samples was obtained with increasing ZrO2 content. The observed improvement in the properties of the sintered composites was attributed to the presence of the hard dispersoids of ZrO2 and formation of solid solution strengthening and hard Cr3Ni2 phases within the matrix of the sintered composites.

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Section: Introductionmentioning

confidence: 99%

Spark plasma sintering of ZrO₂ reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Oketola

Jamiru

Adegbola

et al. 2022

Journal of Composite Materials

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“…Although laser cladded CrNi coating has high corrosion resistance (He and Zeng, 2017; Zhang and Liu, 2017; Xua et al , 2016), the single-layer coating cannot meet the corrosion requirements in harsh environment (Zhang et al , 2018; Yao et al , 2018; He et al , 2018), composite coating is put forward to enhance the corrosion resistance, which is divided into multi-layer and multi-phase coatings. There are many studies on the composite coatings; Picas et al (2015) found that the double-layer CoNiCrAlY/Cr 3 C 2 –CoNiCrAlY coating extended the service life of substrate and improved its corrosion resistance; Xu et al (2011) investigated the corrosion resistance of Ni-graphite coating by adding of NiAl intermediate layer; Reddy et al (2014) described the satisfactory corrosion behavior of double-layered NiCrAlY/WC–Co coatings; Wang et al (2019) revealed the wear resistance and corrosion resistance of Co–P–TiO 2 nanocomposite coatings; and Lia et al (2019) also found that the Ni–W/ZrO 2 –CeO 2 nanocomposite coatings had high corrosion resistance performance in aggressive environment.…”

Section: Introductionmentioning

confidence: 99%

Appraisal on corrosion performances of CrNi, TiAlN/CrNi and CrNi–Al₂O₃–TiO₂ coatings on H13 hot work mold

Dejun

2020

ACMM

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Purpose The purpose of this paper is to evaluate the salt spray corrosion (SSC) and electrochemical corrosion performances of CrNi, TiAlN/NiCr and CrNi–Al2O3–TiO2 coatings on H13 steel, which improved the corrosion resistance of H13 hot work mold. Design/methodology/approach CrNi, TiAlN/NiCr and CrNi–Al2O3–TiO2 coatings were fabricated on H13 hot work mold steel using a laser cladding and cathodic arc ion plating. The SSC and electrochemical performances of obtained coatings were investigated using a corrosion test chamber and electrochemical workstation, respectively. The corrosion morphologies, microstructure and phases were analyzed using an electron scanning microscope, optical microscope and X-ray diffraction, respectively, and the mechanisms of corrosion resistance were also discussed. Findings The CrNi coating is penetrated by corrosion media, producing the oxide of Fe3O4 on the coating surface; and the TiAlN coating is corroded to enter into the CrNi coating, forming the oxides of TiO and NiO, the mechanism is pitting corrosion, whereas the CrNi–Al2O3–TiO2 coating is not penetrated, with no oxides, showing the highest SSC resistance among the three kinds of coatings. The corrosion potential of CrNi coating, TiAlN/CrNi and CrNi–Al2O3–TiO2 coatings was –0.444, –0.481 and –0.334 V, respectively, and the corresponding polarization resistances were 3,074, 2,425 and 86,648 cm2, respectively. The electrochemical corrosion resistance of CrNi–Al2O3–TiO2 coating is the highest, which is enhanced by the additions of Al2O3 and TiO2. Originality/value The CrNi, TiAlN/CrNi and CrNi–Al2O3–TiO2 coatings on H13 hot work mold were firstly evaluated by the SSC and electrochemical performances.

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“…Laser cladding is used high power laser to melt the powders after rapid melting and solidification, the metallurgical bonding is formed with the substrate (Min et al, 2006), the laser cladded coating has the dense microstructure and high bonding strength, which is suitable for a variety of materials. From the literatures (He and Zeng, 2017;Zhang and Liu, 2017;Xua et al, 2016), it was found that Cr-Ni coating has excellent corrosion resistance, scholars have investigated its corrosion resistance, but most methods of fabricating Cr-Ni coating are electroplating (Aghdam et al, 2015;Zhang et al, 2015;Wang et al, 2017). Aghdam et al (2015) and Zhang et al (2015) fabricated the high-quality and crack-free Cr-Ni coatings by controlling the current density and deposition time; however, electroplating is not the preferred method of fabrication because it is harmful to the environment.…”

Section: Introductionmentioning

confidence: 99%

Effects of mass ratios on salt spray corrosion and electrochemical corrosion behaviors of laser cladded Cr–Ni coatings

Dejun

2019

ACMM

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Purpose The purpose of this paper is to improve the salt spray corrosion and electrochemical corrosion performances of H13 hot work mould steel, Cr–Ni coatings with the different Cr and Ni mass ratios are fabricated using a laser cladding (LC), which provides an experimental basis for the surface modification treatment of H13 steel. Design/methodology/approach Cr–Ni coatings with the different Cr and Ni mass ratios were firstly fabricated on H13 hot work mould steel using a laser cladding (LC). The salt spray corrosion (SSC) and electrochemical corrosion performances of Cr–Ni coatings in 3.5 Wt.% NaCl solution were investigated to analyze the corrosion mechanism, and the effect of mass ratios of Cr and Ni on their corrosion mechanism was discussed. Findings The laser cladded Cr–Ni coatings with the different Cr and Ni mass ratios are composed of Cr–Ni compounds, which are metallurgically combined with the substrate. The SSC resistance of Cr–Ni coating with the Cr and Ni mass ratios of 24:76 is the highest. The electrochemical corrosion resistance of Cr–Ni coating with the Cr and Ni mass ratio of 24:76 is the best among the three kinds of coatings. Originality/value In this study, the corrosion resistance of laser cladded Cr–Ni coatings with the Cr and Ni mass ratios of 17: 83, 20: 80 and 24: 76 was first evaluated using salt spray corrosion (SSC) and electrochemical tests, and the effect of mass ratios of Cr and Ni on their corrosion mechanism was discussed.

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Effect of further alloying elements on corrosion resistance of Ni-Cr alloys in molten glass

Cited by 20 publications

References 22 publications

Spark plasma sintering of ZrO₂ reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Spark plasma sintering of ZrO₂ reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Appraisal on corrosion performances of CrNi, TiAlN/CrNi and CrNi–Al₂O₃–TiO₂ coatings on H13 hot work mold

Effects of mass ratios on salt spray corrosion and electrochemical corrosion behaviors of laser cladded Cr–Ni coatings

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Effect of further alloying elements on corrosion resistance of Ni-Cr alloys in molten glass

Cited by 20 publications

References 22 publications

Spark plasma sintering of ZrO2 reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Spark plasma sintering of ZrO2 reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Appraisal on corrosion performances of CrNi, TiAlN/CrNi and CrNi–Al2O3–TiO2 coatings on H13 hot work mold

Effects of mass ratios on salt spray corrosion and electrochemical corrosion behaviors of laser cladded Cr–Ni coatings

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Product

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Spark plasma sintering of ZrO₂ reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Spark plasma sintering of ZrO₂ reinforced Ni-Cr alloy: Microstructure and mechanical behavior

Appraisal on corrosion performances of CrNi, TiAlN/CrNi and CrNi–Al₂O₃–TiO₂ coatings on H13 hot work mold