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Processes
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Advances in Corrosion and Anticorrosion of Materials in Thermal Energy...
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Advances in Corrosion and Anticorrosion of Materials in Thermal Energy Storage Systems

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 231

Special Issue Editor

Dr. Fabiola Pineda

E-Mail Website
Guest Editor
Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino la Pirámide 5750, Santiago 8580745, Chile
Interests: corrosion; molten salt; electrochemical impedance spectrocopy; solar energy

Special Issue Information

Dear Colleagues,

At present, concentrated solar power (CSP) technologies and thermal energy storage (TES) systems are gaining increasing attention as reliable and sustainable solutions for large-scale energy generation. The efficiency and longevity of these systems are heavily influenced by material selection, thermal stability, and corrosion resistance, particularly in high-temperature environments. Currently, significant research efforts are being dedicated to optimizing molten salts, heat transfer fluids (HTFs), nanofluids, and advanced protective coatings to enhance CSP performance and durability.

This Special Issue aims to showcase recent advances in material development, characterization, and innovative strategies to improve the thermal efficiency, stability, and reliability of CSP and TES systems. The focus will be on novel nanomaterials, molten salt formulations, corrosion mitigation strategies, and advanced analytical techniques for understanding material behavior in extreme conditions.

Suitable topics for this Special Issue include, but are not limited to, the following:

  • Development and characterization of advanced molten salts and HTFs;
  • Nanofluids and additive-enhanced thermal storage materials;
  • Corrosion resistance strategies for CSP and TES components;
  • Computational modeling of heat transfer and degradation processes;
  • Novel coatings and protective barriers for high-temperature applications.

This Special Issue welcomes original research articles, reviews, and perspectives on emerging technologies that contribute to the advancement of CSP and TES systems.

Dr. Fabiola Pineda
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanomaterials
  • corrosion
  • coating
  • heat storage material
  • nanofluid
  • material degradation

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Published Papers (1 paper)

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Research

32 pages, 4196 KB  
Article
Innovative Alloy Design for Acid Stimulation Applications: From Lab to Field Validation, Combining High-Temperature Corrosion Testing and AI-Enhanced Corrosion Predictions
by Charbel Ramy, Razvan George Ripeanu, Salim Nassreddine, Maria Tănase, Elias Youssef Zouein, Constantin Cristian Muresan and Ayham Mhanna
Processes 2025, 13(11), 3713; https://doi.org/10.3390/pr13113713 - 17 Nov 2025
Abstract
The oil and gas sector encounterssignificant material problems during acid stimulation, particularly under high temperatures, high pressures, and corrosive conditions with CO2 and H2S. This study focused on corrosion and erosion failures of tungsten carbide jetting nozzles in coiled tubing [...] Read more.
The oil and gas sector encounterssignificant material problems during acid stimulation, particularly under high temperatures, high pressures, and corrosive conditions with CO2 and H2S. This study focused on corrosion and erosion failures of tungsten carbide jetting nozzles in coiled tubing bottom hole assemblies. While tungsten carbide is durable, its high price, restricted machinability, and scarcity necessitate the search for viable alternatives. This study sought to identify and validate a low-cost, readily available, and easily machinable alloy with equivalent performance. A rigorous material selection approach took into account thermochemical stability, mechanical strength, and corrosion resistance under simulated downhole circumstances. Candidate alloys, both coated and uncoated, were subjected to extensive laboratory testing, including acid compatibility, high-temperature corrosion, erosion resistance, and mechanical integrity assessments. The majority failed due to pitting or surface deterioration. However, one coated alloy system was very resistant to chemical and thermal damage. To support long-term performance, a machine learning model relying on Gradient Boosting was created to forecast corrosion behavior using operational factors; demonstrating effective prediction characteristics compared with four other models. This AI-powered tool allows for accurate prediction of corrosion risks and aids decision-making by determining whether the material will maintain integrity under harsh acidic conditions. Field tests proved the selected alloy’s durability and jetting efficiency during many acid stimulation cycles. The corrosion and wear performance of coated 4145 material demonstrates a validated, cost-effective alternative to tungsten carbide with only four times lower corrosion resistance than carbide, outperforming other alloy combinations with up to 35 times higher corrosion rates. These results reveal tremendous opportunities for improving material design in corrosive energy applications. Full article
(This article belongs to the Special Issue Advances in Corrosion and Anticorrosion of Materials in Thermal Energy Storage Systems)
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