Microstructural defects in AISI 4000 series steel subjected to a 3% NaCl corrosion process.

AISI 4000 Series Steel IS one of the most important materials used in engineering. Steel Stainless achieves this degree of importance because of its combination of strength, ease of fabrication, and a wide range of properties at low cost. Some steels are relatively soft, ductile, and can be quickly manufactured into automotive or aircraft parts [1]. These stainless steels maintain a stable ferritic structure from room temperature to melting point, so their corrosion resistance is considered moderate, which increases with chromium content [2]. The present work aims to identify the microstructural defects of two pieces of AISI 4000 Series Steel was obtained from different manufacturing processes and subjected to an experimental process through electrochemical techniques to obtain their corrosion rate