Presentation title: Strengthening of ferritic steels by alloying element through grain boundary segregation

Dr. Toshihiro Tsuchiyama is now a professor at Department of Materials, Kyushu University, Japan. He has graduated from Kyushu University as a Bachelor in 1993, and received his Master and Doctor degrees at Kyushu University in 1995 and 1998.  His research expertise is in the control of microstructures and mechanical properties of steels using alloy design and heat treatment. The target materials include not only plain-carbon and low-alloy steels, but also high-alloy steels such as stainless steels, high/medium Mn steels, and high nitrogen steels. In particular, he is exploring optimal microstructures from the viewpoints of grain size, retained austenite, grain boundary segregation, dislocation density and distribution, and crystallographic features.