Formation of the research center for designing advanced structural functional materials. The formation mechanism of the ultra-fine microstructure associated with severe shear forming, and the effects of the additional shear strains on the ultra-fine grain refinement of the ultra-low carbon IF steel.
Study report by a study group on yield strength and microstructure. Part 1: Explanations and general Review. Chapter 2: Evaluation method of microstructure and structure analysis. Efficiency enhancement of grain refinement by controlling the Hall-Petch factors, and effects of nitrogen contents on the Hall-Petch factor for austenitic steel.