In situ monitoring of the deformation mechanisms in titanium with different oxygen contents
作者： Bassem Barkia , Véronique Doquet , Jean-Philippe Couzinié , Ivan Guillot , Eva Héripré
DOI: 10.1016/J.MSEA.2015.03.044
关键词: Strain hardening exponent 、 Electron backscatter diffraction 、 Materials science 、 Deformation mechanism 、 Crystal twinning 、 Slip (materials science) 、 Grain Boundary Sliding 、 Composite material 、 Work hardening 、 Metallurgy 、 Critical resolved shear stress
摘要: The deformation mechanisms of two titanium batches with different oxygen contents were monitored during tensile tests performed along the rolling and transverse directions under an optical or scanning electron microscope, after EBSD mappings of grain orientations. Whereas the contribution of mechanical twinning was very limited, grain boundary sliding, sometimes leading to intergranular decohesion, as well as kink bands formation were observed. Based on the identification of the primary slip traces in a significant number of …
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