Corrosion Resistance of High Entropy Alloys

Rao, K. Ram Mohan

doi:10.1007/978-3-030-62163-6_4

Cited by 3 publications

(2 citation statements)

References 108 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The resulting structure enables these alloys to possess several interesting and potentially useful properties, such as excellent mechanical properties, or high corrosion resistance, including resistance against oxidation at high temperatures. [ 7–11 ] Therefore, it seems logical to search for HEAs that are also resistant to sulfur‐induced corrosion at temperatures exceeding 500°C.…”

Section: Introductionmentioning

confidence: 99%

Sulfidation behavior of an AlCoCrNiSi high‐entropy alloy

Smola,

Gawel,

Grzesik

2024

Materials & Corrosion

View full text Add to dashboard Cite

High‐entropy alloys (HEAs) are promising new materials considered for application in high temperature environments. In this work, the sulfidation behavior of an Al–Co–Cr–Ni–Si HEA at different elevated temperatures and various sulfur vapor partial pressures is investigated. Thermogravimetric studies indicate that the sulfidation kinetics are in accordance with the parabolic rate law. The corrosion rate has a strong temperature dependence, whereas the influence of sulfur vapor pressure is practically nonexistent. Changes in temperature also do not seem to affect the sulfidation mechanism as evidenced by the Arrhenius correlation determined between the obtained parabolic rate constants and temperature. Combined SEM–EDS and XRD studies reveal the formation of a thick multilayer scale on the studied alloy, where the outermost relatively compact part is built of Co0.5NiS2 and CrAl2S4 while the inner, rather porous part also contains metallic inclusions, including Si near the scale/substrate interface.

show abstract

Section: Introductionmentioning

confidence: 99%

Sulfidation behavior of an AlCoCrNiSi high‐entropy alloy

Smola,

Gawel,

Grzesik

2024

Materials & Corrosion

View full text Add to dashboard Cite

show abstract

“…In addition, the alloy processing route as the corrosion inhabitant method is not ideally suitable for highly sensitive engineering service environments when there is a lack of high-temperature stability in base or conventional material [ 13 , 25 ]. In recent years, surface coating methods (electro-spark deposition, laser cladding, magnetron sputtering, thermal spray process and chemical-vapor deposition) have become practiced widely in industries [ 26 , 27 ]. Thermal spraying and electroplating techniques are widely applied coating techniques to protect or repair the metallic surfaces of mechanical parts [ 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Zn and Zn–WO3 Composites Nano-Coatings Deposition on Hardness and Corrosion Resistance in Steel Substrate

Kumar

Chandrashekarappa

Kulkarni³

et al. 2021

Materials

View full text Add to dashboard Cite

Pure Zn (Zinc) and its Zn–WO3 (Zinc–Tungsten trioxide) composite coatings were deposited on mild steel specimens by applying the electrodeposition technique. Zn–WO3 composites were prepared for the concentration of 0.5 and 1.0 g/L of particles. The influence of WO3 particles on Zn deposition, the surface morphology of composite, and texture co-efficient were analyzed using a variety of techniques, such as X-ray diffraction (XRD) and scanning electron microscopy (SEM) with Energy Dispersive X-ray analysis (EDX). Higher corrosion resistance and microhardness were observed on the Zn–WO3 composite (concentration of 1.0 g/L). The higher corrosion resistance and microhardness of 1.0 g/L Zn–WO3 nanocomposite coatings effectively protect the steel used for the manufacture of products, parts, or systems from chemical or electrochemical deterioration in industrial and marine ambient environments.

show abstract