The improved corrosion performance of AISI 304 steel is due to the presence of appreciable amounts of chromium and nickel in its chemical composition. The corrosion degradation AISI 1020 is observed to occur due to pitting corrosion aggravated by microcracks. ![]() The work shows that while the mechanical properties of AISI 1020 are superior, the corrosion performance in 3.5 wt% NaCl solution is actually poor. This work correlates the chemical composition, microstructure, mechanical properties, and corrosion performance (by construction of Tafel plots through potentiodynamic polarization tests) of AISI 1020 and 304 steel and compares them. Although there are a number of articles that have evaluated performance and characterized their properties of these commercially available materials for their applications, the structure–property–performance correlation of the materials is not available. The selection of the material for different applications usually involves an initial assessment of their structure–property correlation. There are both low carbon, but differ substantially in their chemical compositions, structure, mechanical properties, and also their corrosion performance. They are used as substrates for coating thin films to improve their performance. The two most common grades of commercially available low carbon steel are AISI 1020 and 304 grades. These materials can be easily welded and forged and shaped. ![]() ![]() Low carbon steel materials are commonly used for numerous applications for both scientific as well as practical purposes.
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