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Strain-induced transformation in a low carbon microalloyed steel during hot compression testing

2005; Elsevier BV; Volume: 54; Issue: 6 Linguagem: Inglês

10.1016/j.scriptamat.2005.11.026

1872-8456

B. Eghbali, A. Abdollah-zadeh,

Hydrogen embrittlement and corrosion behaviors in metals

Strain-induced transformation (SIT) of austenite to ferrite during hot compression testing of a low carbon microalloyed steel is investigated by using optical microscopy and electron back-scattered diffraction. Microstructural observation indicates that ultrafine ferrite grains of ∼1.5 μm can be obtained by deformation at 845 °C, just above Ar3, with a strain rate of 0.1 s−1 due to the occurrence of SIT of austenite to ferrite.