Martensitic stainless steel 410 is critical in applications requiring strength and moderate corrosion resistance. Understanding the effects of temperature and strain rate on its hot deformation behavior is essential for optimizing processing techniques.

Temperature Effects: Higher temperatures reduce flow stress due to enhanced atomic mobility, improving ductility. However, excessively high temperatures can lead to grain growth, negatively impacting strength.

Strain Rate Effects: Increased strain rates elevate flow stress due to limited dislocation movement, resulting in work hardening and reduced ductility. Lower strain rates allow for dislocation glide and recovery, promoting better ductility.

Microstructural Evolution: Hot deformation influences microstructure through mechanisms like dynamic recrystallization (DRX), which refines grain structure and enhances mechanical properties. The optimal balance of temperature and strain rate facilitates DRX, improving performance.

Practical Implications: Knowledge of these effects is vital for optimizing forging and heat treatment processes, ultimately enhancing the mechanical properties and service life of components made from 410 stainless steel. Further research will aid in advancing processing techniques for demanding applications.