Invited speakers

R. W. Armstrong (University of Maryland, USA)
"Hall-Petch Analysis: Past to Present Nano-Scale Connections"

D. E. Spearot (University of Arkansas, USA)
"Molecular Dynamics simulation of Grain Boundary Structure and Grain Size Dependent Flow Strength in Nanocrystalline Materials"

R. Z. Valiev (Ufa state Aviat Tech. University, RUSSIA)
"Superior Strength in Bulk Nanostructured Metallic Materials Produced by SPD processing"

N. Tsuji (Kyoto University, JAPAN)
"Peculiar Hall-Petch Relationship in Nanostructured Metals"

Y. Ikuhara (The University of Tokyo, JAPAN)
"Grain Boundary Sliding and Dislocation Motion in Oxides"

Z. Horita (Kyushu University, JAPAN)
"Ultrafine-Grained Structures and Superplasticity after Processing by Severe Plastic Deformation "

M. Kato (Tokyo Institute of Technology, JAPAN)
"A Dislocation Model for Deformation of Ultrafine-Grained Crystals: Effects of Grain Size, Temperature and Strain Rate "

G. Saada (LEM-CNRS-ONERA, France)
"On the yield stress of nanograined polycrystals"

R. H. Wagoner (The Ohio State University, USA)
"A practical meso-scale polycrystal model to predict dislocation densities, lattice curvature and the Hall-Petch effect"

S. Takaki (Kyushu University, JAPAN)
"Effects of Grain Boundary Segregation of Interstitial Elements on the Hall-Petch coefficient in steels"

K. Higashida (Kyushu University, JAPAN)
"Effects of Grain-Refinement due to Severe Plastic Deformation on the Brittle-to -Ductile Transition in low carbon Steels"

S. Tsurekawa (Kumamoto University, JAPAN)
"The Hall-Petch Relation depending on Grain Boundary Character Distribution"

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