Examination on the growth textures of eutectic cementite of various morphologies

The microtexture of eutectic cementite with various morphologies was determined by using electron back-scattered diffraction (EBSD). Experimental results showed a higher carbon content and directional solidification lead to straight interfaces of the cementite. And the eutectic cementite with straight interfaces possesses a preferred [001]c growth direction due to the edge-wise growth; on the contrary, cementite with curved interfaces has a more random texture resulting from cooperative growth.