Superior Slurry Erosion Behavior of a Casting NiCoCrFeNb0.45 Eutectic High Entropy Alloy

Jiang, Liting; Wang, Zhenjiang; Wang, Wei; Zhou, Kuang; He, Feng; Wang, Zhijun

doi:10.1007/s40195-020-01070-8

Cited by 16 publications

(5 citation statements)

References 25 publications

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“…Our results imply that although the electrochemical parameters of the equiatomic entropy alloys are located in the range of all the constituents, more attention should be paid to the elements with the highest and lowest corrosion resistance, which determines the upper and lower boundaries of the corrosion performance of the alloys. The above findings provide instruction for element selection during the materials design process of high-entropy alloys [58]. However, we also should note that the effect of the equiatomic elements on the corrosion behavior can be even more complicated for multiphase high-entropy alloys, for the cause of galvanic corrosion between different constituent phases [15,16,52,59,60].…”

Section: X-ray Photoelectron Spectroscopy Resultsmentioning

confidence: 67%

Relationship of Corrosion Behavior Between Single-Phase Equiatomic CoCrNi, CoCrNiFe, CoCrNiFeMn Alloys and Their Constituents in NaCl Solution

Wang

Shen

Chen

et al. 2021

Acta Metall. Sin. (Engl. Lett.)

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The composition is a significant issue for corrosion resistance of metallic materials. To reveal the correlation of corrosion behavior between multiprinciple alloys and their constituents, a series of single-phase equiatomic alloys of CoCrNi, CoCrNiFe and CoCrNiFeMn was fabricated. The electrochemical and scanning electron microscope results demonstrated that corrosion resistance of the equiatomic alloys in 0.1 M NaCl solution is located in the range but not the average value of their constituents. X-ray photoelectron spectroscopy analysis indicated that the protective performance of passive film is mainly determined by the constituent with the highest corrosion resistance and the breakdown of passive film is mainly dominated by the elements with the highest corrosion rate. Our findings can guide the materials design of multiprinciple alloys with expected corrosion performance.

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Section: X-ray Photoelectron Spectroscopy Resultsmentioning

confidence: 67%

Relationship of Corrosion Behavior Between Single-Phase Equiatomic CoCrNi, CoCrNiFe, CoCrNiFeMn Alloys and Their Constituents in NaCl Solution

Wang

Shen

Chen

et al. 2021

Acta Metall. Sin. (Engl. Lett.)

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“…Due to compound lamellar structure of phases, Laves (harder to BCC phase) and softer FCC, EHEA was found to have least erosion rate. 109 Elastomers and plastics. Elastomers and plastics are the materials that have excellent properties to tackle wear due to erosive or abrasive slurries because of their resistance towards erosion, corrosion, toughness and light weight.…”

Section: Othersmentioning

confidence: 99%

“…Due to compound lamellar structure of phases, Laves (harder to BCC phase) and softer FCC, EHEA was found to have least erosion rate. 109…”

Section: Experimental and Comparative Studies On Erosion Performance ...mentioning

confidence: 99%

Insights to improve the tribo-performance of materials used under slurry erosion applications: A review

Yadav

Singh²

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Slurry erosion usually results in the form of damage to the materials of different components having underwater working domain. Numerous industries have suffered due to this kind of wear resulting in frequent breakdowns demanding repeated financial assistance and poor productivity. Properties and tribo-performance of materials related to distinct slurry applications play a significant role in arresting the slurry erosion wear. Slurry erosion depends on different parameters such as impact velocity, impingement angle, shape and size of erodent, slurry concentration and so on. These parameters differ from one application to another and accordingly, specific materials are selected knowing the extent and severity of slurry erosion wear. In the last decade, many authors studied parametrically the tribo-slurry erosion performance of materials, few of them correlated their investigations to the actual in situ conditions of applications. Various authors have analyzed the effect of operating parameters on the mechanism of erosion and conducted the comparative studies of different materials. Many of the investigators attempted to improve the properties and tribo-slurry erosion performance of materials through surface modification techniques; coating, reinforcement, heat treatment, thermo-mechanical process etc. This review is an effort to covers all such kind of explorations.

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“…Also, in recent years, many studies addressed various parameters and their effects on slurry erosion. These include erodent size and slurry concentration [9,[14][15][16][17][18][19][20], flow parameter [21][22][23][24], impact velocity [15,[25][26][27][28][29], erodent shape and size [18], medium [9,[30][31][32][33], testing methods [29,34], and material properties. Most of the studies tried to correlate the mechanical properties of the substrate with the slurry erosion and erosion rates.…”

Section: Introductionmentioning

confidence: 99%

Surface and bulk modification techniques to mitigate silt erosion in hydro turbines: a review of techniques and parameters

Singh

Nath

2022

Surface Engineering

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Silt erosion causes big efficiency and economic losses to hydro turbines and other industries involving the relative motion of the slurry/silt. This article reviews various techniques employed in the literature to mitigate the silt erosion. The main prominence is given to the latest technologies rather than the number of articles on the same technology. The available techniques are classified into two broad categories namely, surface modification techniques, and bulk material modification techniques; then reviewed systematically. The parameters (properties) which largely influence the material loss, for corresponding techniques, are also familiarized. In addition to this, how these parameters were improved and why these parameters enhanced the slurry erosion performance are discussed. Surface coating increases the surface hardness, is found to be the most addressed and most successful technique for the said purpose. The hardness of the substrate was found to be the most addressed property which can largely control the silt erosion.

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Superior Slurry Erosion Behavior of a Casting NiCoCrFeNb0.45 Eutectic High Entropy Alloy

Cited by 16 publications

References 25 publications

Relationship of Corrosion Behavior Between Single-Phase Equiatomic CoCrNi, CoCrNiFe, CoCrNiFeMn Alloys and Their Constituents in NaCl Solution

Relationship of Corrosion Behavior Between Single-Phase Equiatomic CoCrNi, CoCrNiFe, CoCrNiFeMn Alloys and Their Constituents in NaCl Solution

Insights to improve the tribo-performance of materials used under slurry erosion applications: A review

Surface and bulk modification techniques to mitigate silt erosion in hydro turbines: a review of techniques and parameters

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