Erosion-corrosion behaviour of CoCrFeNiMo0.85 and Al0.5CoCrFeNi complex concentrated alloys produced by laser metal deposition

Brownlie, F.; Hodgkiess, T.; Fanicchia, Francesco

doi:10.1016/j.surfcoat.2021.127634

Cited by 13 publications

(4 citation statements)

References 41 publications

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“…The performance of the same CoCrFeMo 0.85 Ni alloy, together with another Al 0.5 CoCrFeNi alloy, both deposited by laser metal deposition, were later analyzed by Brownlie et al., [ 154 ] and Thorhallsson et al., [ 155 ] by means of laboratory and in‐situ tests respectively. The two alloys were formulated to be composed, largely, of an FCC microstructure, as well as secondary phases to improve their mechanical properties.…”

Section: Review Of Paint and Coating Systemsmentioning

confidence: 99%

“…The two alloys were formulated to be composed, largely, of an FCC microstructure, as well as secondary phases to improve their mechanical properties. In the work of Brownlie et al., [ 154 ] the two alloys, deposited onto stainless steel 304L (UNS S30403, CoCrFeMo 0.85 Ni) and stainless‐steel Type 316 (UNS S31600, Al 0.5 CoCrFeNi) were analyzed for their erosion‐corrosion performance against wrought carbon steel P265GH (EN10028) and stainless‐steel Type 304 (UNS S30403). Erosion‐corrosion testing was performed by using a custom‐made submerged impingement jet test rig, using a slurry of angular silica sand in a 3.5wt.%NaCl solution of pH = 4 at a 90° impingement angle.…”

Section: Review Of Paint and Coating Systemsmentioning

confidence: 99%

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Research and Development on Coatings and Paints for Geothermal Environments: A Review

Fanicchia,

Karlsdottir

2023

Adv Materials Technologies

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Geothermal power plants are complex systems, where the interplay between different metallic components transforms the enthalpy of hot brine in the form of electricity or usable heated water. The naturally occurring variety in brine chemistry, linked to the presence of specific key species, and its thermo‐physical properties, leads to the development of different power plant configurations. Key species and power plant configuration in turn determine the extent of damage experienced by each component in the power plant: erosion, corrosion, and/or scaling, often acting combined. Paints and coatings, compared to changing the component alloy, have represented a preferred solution to mitigate these issues due to advantages in terms of costs and repairability. This is reflected in the large number of publications on research and development in this area within the past ≈50 years, with even an increasing trend in the past 10–20 years, indicating the strong interest to develop this clean and sustainable energy source. Therefore, in this work, the first of its kind after 1980, an in‐depth review of all published work on research performed on paints and coatings for geothermal applications, subdivided by the material system, is provided.

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Section: Review Of Paint and Coating Systemsmentioning

confidence: 99%

Section: Review Of Paint and Coating Systemsmentioning

confidence: 99%

Research and Development on Coatings and Paints for Geothermal Environments: A Review

Fanicchia,

Karlsdottir

2023

Adv Materials Technologies

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“…Tribological studies on HEAs are mostly conducted with variations in content of one element and finding the optimum concentration of the element for minimum wear rate [360,[363][364][365]371,[377][378][379][380]383,384,386,390,394,395,397,398,407,408,412,421,422,424,427,428,431,440,454,455,463,470,472,474]. Furthermore, the effect of Al content on wear properties and hardness has been studied more than any other metal.…”

Section: Content Variationmentioning

confidence: 99%

Recent Advances in Additive Manufacturing of High Entropy Alloys and Their Nuclear and Wear-Resistant Applications

Sonal

Lee

2021

Metals

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Alloying has been very common practice in materials engineering to fabricate metals of desirable properties for specific applications. Traditionally, a small amount of the desired material is added to the principal metal. However, a new alloying technique emerged in 2004 with the concept of adding several principal elements in or near equi-atomic concentrations. These are popularly known as high entropy alloys (HEAs) which can have a wide composition range. A vast area of this composition range is still unexplored. The HEAs research community is still trying to identify and characterize the behaviors of these alloys under different scenarios to develop high-performance materials with desired properties and make the next class of advanced materials. Over the years, understanding of the thermodynamics theories, phase stability and manufacturing methods of HEAs has improved. Moreover, HEAs have also shown retention of strength and relevant properties under extreme tribological conditions and radiation. Recent progresses in these fields are surveyed and discussed in this review with a focus on HEAs for use under extreme environments (i.e., wear and irradiation) and their fabrication using additive manufacturing.

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“…Researchers have developed a variety of protective techniques that apply to metallic materials (Nosko et al , 2017; Ren et al , 2023; Wang et al , 2022; Xia et al , 2022). These include metal alloying, electrochemical protection, rust-removing oil, corrosion inhibitors and organic anti-corrosion coatings (Zhang et al , 2022; Calabrese et al , 2019; Brownlie et al , 2021; Chukwuike et al , 2021; Fadhil et al , 2020; Umoren et al , 2022). Due to the increasingly demanding service environment of metallic materials, there are certain limitations to the application of each corrosion protection technology (Pan et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

Studies of zinc content reduction using flake zinc powder in epoxy zinc-rich coatings

Liu,

Wang,

Cai

et al. 2023

ACMM

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Purpose Epoxy zinc-rich coatings are widely used in harsh environments because of the long-lasting cathodic protection of steel surfaces. The purpose of this paper is to use flake zinc powder instead of the commonly used spherical zinc powder to reduce the zinc powder content. Design/methodology/approach In this paper, the authors have prepared an anticorrosive zinc-rich coating using a flake zinc powder instead of the conventional spherical zinc powder. The optimal dispersion of scaly zinc powder in zinc-rich coatings has been explored by looking at the surface and cross-sectional morphology and studying the cathodic protection time of the coating. Findings The final epoxy zinc-rich coating with 35 Wt.% flake zinc powder content was prepared using sand-milling dispersions. It has a similar cathodic protection time and salt spray resistance as the 60 Wt.% spherical zinc-rich coating, with a higher low-frequency impedance modulus value. Originality/value This study uses flake zinc powder instead of the traditional spherical zinc powder. This reduces the amount of zinc powder in the coating and improves the corrosion resistance of the coating.

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Erosion-corrosion behaviour of CoCrFeNiMo0.85 and Al0.5CoCrFeNi complex concentrated alloys produced by laser metal deposition

Cited by 13 publications

References 41 publications

Research and Development on Coatings and Paints for Geothermal Environments: A Review

Research and Development on Coatings and Paints for Geothermal Environments: A Review

Recent Advances in Additive Manufacturing of High Entropy Alloys and Their Nuclear and Wear-Resistant Applications

Studies of zinc content reduction using flake zinc powder in epoxy zinc-rich coatings

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