Developing sustainable, affordable, and reliable energy systems are challenging for the corrosion industry. It becomes crucial to consider the long-term behavior of structural materials (primarily metals and alloys) when developing climate-resilient energy systems and infrastructures.
FREMONT, CA: Corrosion remains the subject of numerous scientific studies worldwide, but since it can manifest itself in many forms, it will never be possible to avoid its occurrence and associated costs altogether. Most studies claim that corrosion management practices can save 25-30 percent of annual corrosion costs in various corrosion problems.
The corrosion of pipelines, bridges, and public buildings is dangerous and expensive, as are earthquakes and severe weather disturbances. It can also damage water and wastewater systems, hydrogen infrastructure, smart home appliances, batteries, sensors, and nanotechnology. Public safety, the economy, and the environment can all be compromised by corrosion, unlike weather-related disasters. It is still necessary to invest in biodegradable and programmable corrosion technologies.
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Corrosion professionals must understand the effects of changing climatic conditions and other environmental factors. Many factors contribute to this decarbonization, including contamination of the atmosphere, soil resistance, humidity, and the effects of saltwater on different materials. It is necessary to determine the corrosion problem and its solution based on the product type, the lifetime prediction of the structure or component, and proximity to corrosion-causing phenomena like stray current from rail systems and appropriate mitigation methods.
The use of augmented reality and virtual reality technology is vital to corrosion science and its prevention for future generations. Knowledge sharing between societies and individuals is an integral part of corrosion prevention for corrosion engineers. For example, colleagues in another world might have already solved a corrosion problem at one location. Industrial digitalization, data collection, data mining, sharing, and security can prevent corrosion-related failures and accidents. This urgent need led to the creation of international associations to establish standards, raise public awareness, identify best practices, and provide expertise.
Despite many organizations, strategies, and preventative solutions, there are still many challenges in corrosion science and engineering. Global leaders in the corrosion prevention industry have developed innovative ideas for the future.
Solar energy sector corrosion: A particular concern for solar thermal systems is atmospheric corrosion of reflective surfaces. In primary heat transfer media (gas, liquid metals, molten salts, [supercritical] water, or organic fluids), metallic materials are exposed to high operating temperatures. Solar thermal can benefit from solutions available in other sectors. Solar thermal technologies may easily benefit from using liquid metals (lead, sodium). There may be a way to solve corrosion issues in high-temperature environments by developing collaborative strategies and technologies, such as corrosion-resistant alloys (CRAs) in molten salts.
Corrosion is a major factor causing the failure of busbars (usually copper, silver, or aluminum), metallic contacts (molybdenum, aluminum, copper), solders, and sometimes silicon. More specific corrosion mechanisms than atmospheric corrosion can fail encapsulation, backsheet, or frontsheet protection, such as the formation of acetic acid by EVA discoloration or the effect of high electric fields.
Geothermal Energy Sector Corrosion: Geothermal sources differ in temperature, chemistry, depth, and location. The corrosiveness of geothermal fluids is a challenge. Depending on the chemicals in geothermal fluid and steam, geothermal energy sources have a very variable corrosive potential, which dictates the material selection for wells, turbines, and other equipment. Geothermal fluids use a variety of metals and alloys. Corrosion is a common problem with carbon steels, which are often injected with corrosion inhibitors.
When thick mineral layers form during operation under geothermal conditions, both carbon and stainless steel can suffer crack initiation. Mineral scaling on steel surfaces can provide insights into stress corrosion mechanisms. Under certain electrochemical conditions, pits and crevices can form at the scale/steel interface. A critical scientific question concerns the interaction between local electrochemical conditions, geothermal deposits, and local deformations and stresses.
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