Tohoku University. Research Profiles


Advanced Control of Microstructure and Property of Structural Metallic Materials



Microstructure represents various kinds of heterogeneities in the metallic materials, i.e., grains, component phase, lattice defects and chemical inhomogeneity such as impurity/alloying elements. It can be modified through control of phase transformation/precipitation and deformation/recrystallization by adjusting compositions of materials and/or through processing routes (heat treatment, deformation). Such expertise in micro/nanostructure control is very important in production of current materials from viewpoints of energy saving and recycling in structural materials such as steels and titanium alloys.
We attempt to apply more advanced control of micro/nanostructures, such as atomic structures of crystalline interfaces, chemistory in an atomic scale (e.g., segregation) and so on. Fundamentals of microstructure formation (thermodynamics, kinetics, crystallography) are examined both theoretically and experimentally to clarify key factors for microstructure control. Another important aspect in our research is the improvement of mechanical property by microstructure manipulation.

Targeted Application(s)/Industry

Possibilities to establish new functions (e.g., superplasticity, shape memory/superelasticity) as well as superior mechanical properties (e.g., ultrahigh strength with high toughness/ductility) is also explored.


Institute for Materials Research

FURUHARA Tadashi , Professor


Related Information

"Phase transformations in steels", Vol. 1, Chapter 11, Woodhead Publishing Limited, 2012.

"Formation of Ultrafine Grained Ferrite + Cementite Duplex Structure by Warm Deformation", Advanced Steels - The Recent Scenario in Steel Science and Technology, ed. by Yuqing Weng, Han Dong, Yong Gan, Springer, London, 2011, pp. 495-500.