2016•Applied Mechanics and MaterialsOpen access

Investigating on the Hot Compression Behavior of 2101 Lean Duplex Stainless Steel

Yin Hui Yang, Yu Liang Bai

Abstract

The high temperature deformation behavior of 2101 duplex stainless steel has been investigated in the temperature ranges of 900-1150°C and strain rate ranges of 0.001-1s-1. Increasing strain rate from 0.001 to 1s-1 was contributed to austenite dynamic recrystallization (DRX) of specimens with deformation temperature of 900°C, but the DRX effect was weakened due to coarsening of equiaxial grains by increasing deformation temperature to 1050 and 1150°C. The effect of ferrite dynamic recovery (DRV) was enhanced with deformation temperature from 900 to 1050°C, then which was weakened with further increasing deformation temperature to 1150°C. By regression, the deformation equation and activity energy of 457.93 kJ/mol in these deformation conditions was obtained.

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Key concepts: Materials science, Dynamic recrystallization, Austenite, Deformation (meteorology), Strain rate, Metallurgy, Ferrite (magnet), Duplex (building)