A correlative approach to segmenting phases and ferrite morphologies in transformation-induced plasticity steel using electron back-scattering diffraction and energy dispersive X-ray spectroscopy

作者：Gazder Azdiar A^*; Al Harbi Fayez; Spanke Hendrik Th; Mitchell David R G; Pereloma Elena V

来源：Ultramicroscopy, 2014, 147: 114-132.

DOI：10.1016/j.ultramic.2014.07.005

• Transformation-induced plasticity (TRIP)
• Steel
• Electron back scattering diffraction (EBSD)
• Energy dispersive X-ray spectroscopy (EDS)
• Transmission electron microscopy (TEM)
• Carbon partitioning
• Bainite

Using a combination of electron back-scattering diffraction and energy dispersive X-ray spectroscopy data, a segmentation procedure was developed to comprehensively distinguish austenite, martensite, polygonal ferrite, ferrite in granular bainite and bainitic ferrite laths in a thermo-mechanically processed low-Si, high-Al transformation-induced plasticity steel. The efficacy of the ferrite morphologies segmentation procedure was verified by transmission electron microscopy. The variation in carbon content between the ferrite in granular bainite and bainitic ferrite laths was explained on the basis of carbon partitioning during their growth.

• 出版日期2014-12