Published January 1, 2016 | Version v1
Journal article Open

INVESTIGATION OF PORTEVIN-LE CHATELIER EFFECT OF HOT-ROLLED Fe-13Mn-0.2C-1Al-1Si TWIP STEEL

  • 1. Tubitak Natl Metrol Inst UME, PK 54, TR-41470 Gebze, Kocaeli, Turkey
  • 2. Tubitak MRC, Mat Inst, PK 21, TR-41470 Gebze, Kocaeli, Turkey

Description

This study was undertaken to investigate the microstructure and mechanical properties of hot rolled Fe-13Mn-0.2C-1Al-1Si TWIP steel. Tensile tests were carried out at different strain rates to determine the Portevin-Le Chatelier (PLC) effect during deformation. Subsequently, the samples were investigated by light microscopy and SEM. The sample microstructures revealed inhomogeneous dislocation zones, deformation twinning and twin-dislocation interactions. Consequently, the PLC effect during deformation was determined to be responsible for the excellent mechanical properties of the TWIP steel.

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