About us

About us

Microstructure control and processing by the combination of deformation, heat treatment and alloy design

The research targets for thermomechanical processing group are the microstructural change by phase transformation, recovery and recrystallization and the influence of this change on the mechanical properties. The challenging subject is selected from the vailed issues that are desired to be clarified for the development of new processing. These are, for example, (i) the effect of applied stress on transformation during heat treatment and (ii) the relation between the microstructural change and the mechanism for impact deformation and fatigue. These are studied mainly by physical experiments. The goal is to establish new principles applicable to general metallic materials.

Members

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  Rintaro Ueji

  Group Leader, Thermomechanical Processing Group, Materials Manufacturing Field, Research Center for Structural Materials

  Keyword : thermomechanical processing，plasticity，heat treatment，steel，metal，structural materials

  Kyushu University-NIMS Joint Graduate School
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  Takahiro Sawaguchi

  Managing Researcher, Research Center for Structural Materials Thermomechanical Processing Group, Materials Manufacturing Field, Research Center for Structural Materials

  Keyword : high Mn austenitic steel, low cycle fatigue, epsilon martensite, vibration control structure

  NIMS Now (2021) No.2
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  Satoshi Emura

  Principal Researcher, Thermomechanical Processing Group, Materials Manufacturing Field, Research Center for Structural Materials

  Keyword : titanium alloy, deformation microstructure, elemental segregation, layered structure, anisotropy, stainless steel

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  Fumiyoshi Yoshinaka

  Senior Researcher, Thermomechanical Processing Group, Materials Manufacturing Field, Research Center for Structural Materials

  Keyword : metal fatigue, fatigue crack, fracture surface observation, metallic material, steel, titanium alloy, synchrotron radiation, alloy development