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2011 Fiscal Year Final Research Report

The proposal for the next-generation microstructural control technique of steel by using ultra-fine lath austenitic starting structure

Research Project

  • PDF
Project/Area Number 22686065
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Structural/Functional materials
Research InstitutionKyushu University

Principal Investigator

NAKADA Nobuo  九州大学, 工学研究院, 助教 (50380580)

Project Period (FY) 2010 – 2011
Keywords鉄鋼材料 / 超微細粒 / 相変態 / 組織制御 / マルテンサイト変態
Research Abstract

For the production of fine-grained structural steel, the microstructural characteristics of lath austenite formed by martensitic reversion and the microstructure transformed from it were investigated. As a result, it was confirmed in a model steel that the lath austenite has fine lath structure containing high-density dislocations. In addition, it was suggested that martensitic reversion takes place even in a low alloyed steel under the specific condition controlled by alloy designing and heat treatment.

  • Research Products

    (3 results)

All 2012 2011 Other

All Presentation (2 results) Remarks (1 results)

  • [Presentation] せん断型逆変態により形成されるオーステナイト組織2012

    • Author(s)
      深川怜史、中田伸生、土山聡宏、高木節雄
    • Organizer
      日本鉄鋼協会春季講演大会
    • Place of Presentation
      横浜国立大学(横浜市)
    • Year and Date
      2012-03-29
  • [Presentation] せん断型逆変態により生成したオーステナイト組織の特徴2011

    • Author(s)
      中田伸生
    • Organizer
      高温強度と組織形成の材料科学研究会(招待講演)
    • Place of Presentation
      樺川荘(高松市)
    • Year and Date
      2011-08-26
  • [Remarks]

    • URL

      http://takaki.zaiko.kyushu-u.ac.jp/

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Published: 2013-07-31  

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