Dúplex Stainless Steel with Silicon Carbide Coating to Avoid Stress Corrosion Cracking in Generators of Transformers and Besides Raise Thermal Conductivity, Efficiency
Acero inoxidable dúplex con recubrimiento de carburo de silicio para evitar el agrietamiento por corrosión bajo tensión en generadores de transformadores y, además, aumentar la conductividad térmica y la eficiencia
DOI:
https://doi.org/10.65011/prismaods.v5.i3.322Palabras clave:
duplex stainless steel, SiC coating, thermal conductivity, SCCResumen
The novel 18Cr-18Mn duplex steel arose from the need to prevent catastrophic failures caused by stress corrosion cracking in generator retaining rings. In this work, we propose using this material with a silicon carbide coating to prevent SCC failures in generators, which cause cracking in the materials. Since 18Cr-18Mn duplex steel is not susceptible to stress corrosion cracking, the SiC coating is expected to increase the steel's thermal conductivity and has also been used as a corrosion inhibitor. The steel will be developed, and its composition and microstructure will be characterized using SEM and X-ray diffraction equipment. Electrochemical tests of potentiodynamic polarization and electrochemical impedance will be performed to determine its corrosion behavior. Furthermore, its mechanical behavior will be characterized by performing hardness and/or microhardness tests and tensile tests to obtain its engineering properties. It is expected to develop a steel with excellent properties of high thermal conductivity and good resistance to cracking corrosion that is suitable for manufacturing Transformer Generators.
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Derechos de autor 2026 David Juárez Romero, Ricardo Reyes Hernández, Rene Guardian Tapia, Ángel Horacio Hernández Soria, Sandro Guadalupe Pérez Grajales (Autor/a)
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