Effect of Recrystallization Temperature on Metallurgical Properties of ASTM A242 Corten Steel

Abstract:

Corten steel is a type of weathering steel possessing high strength with low alloying elements content. The uniqueness of Corten steel lies in its excellent corrosion resistance to elements of nature, and having high strength to weight ratio among the carbon steels. The Corten steel is widely used in fabricating railway coaches, structures like bridges, etc. Even though the Corten steel is weldable, its inherent properties are lost during welding and other thermal processes. The behavior is due to the change in metallurgical and mechanical properties of Corten steel when undergoing processes exceeding the recrystallization temperature. Hence, necessitating the need for this research work. In this research work, the micro hardness, microstructure and grain size of Corten ASTM A242 Grade Steel was evaluated in as received normal condition and at recrystallization temperature. When the material is heated up to recrystallization temperature the formation of new grains is observed. Recrystallization had a positive impact on the microstructure and micro hardness of the Corten steel.

• Periodical: Key Engineering Materials (Volume 933)
• Pages: 124-128
• DOI: https://doi.org/10.4028/p-61m1v8
• Online since: October 2022
• Authors: D. Kumaravel, V.K. Bupesh Raja*
• Keywords: Corten Steel, Hardness, Metallurgy, Microstructure, Recrystallization, Temperature

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