Effect of Thermomechanical Processing on the Microstructure and Mechanical Properties of a Medium Mn Steel Sheet with Nb Addition

Key Points

• Mechanical properties improve with optimal thermomechanical processing, leading to better strength.
• Microstructural analysis reveals significant grain refinement as niobium addition increases.
• Assessment using standardized testing procedures highlights variances in toughness and ductility.
• Findings support the potential for niobium to enhance medium Mn steel properties, indicating industrial relevance.