Effect of Grain Size and Meso-Texture on the Impact Toughness of Ti-Microalloyed Steel
Charpy impact testing (over the transition temperature rage) on different samples of a Ti-microalloyed steel, having the same average-TiN particle size but different average-ferrite grain sizes, showed that in spite of the presence of large TiN cuboides, ferrite grain refinement can significantly improve the impact toughness, provided the meso-texture (i.e. the intensity of low-angle boundaries) and matrix strength can be restricted to low values.
Asim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar and Arunansu Haldar
A. Ray and D. Chakrabarti, "Effect of Grain Size and Meso-Texture on the Impact Toughness of Ti-Microalloyed Steel", Materials Science Forum, Vols. 702-703, pp. 766-769, 2012