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Microstructure Refinement and Control of Metal Tubes with a Novel Rotating Bending Process

Research Project

Project/Area Number 25870594
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Material processing/Microstructural control engineering
Materials/Mechanics of materials
Research InstitutionTokyo Metropolitan University

Principal Investigator

ZHANG Zicheng  首都大学東京, 理工学研究科, 客員研究員 (10642671)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords金属管 / 強加工 / 繰返し曲げ加工 / 結晶粒微細化 / 累積塑性ひずみ / grain refinement / microstructure / equivalent strain / FEM / metal tube / process condition / stress state model
Outline of Final Research Achievements

To refine and control the microstructure of metal tubes the cyclic rotating bending (CRB) process was proposed. The effects of the deformation temperature, bending radius, cumulative strain, and internal stress and strain distribution influence on the grain size were investigated. The predictive models to characterize the deformation behavior of metal tubes in rotating bending process was proposed. The microstructure of all of the metal tubes were refined by the CRB process. It was also found that the rotating bending process showed different refinement effects on different kind of metal tubes. As a result, to obtain the expected grain size and mechanical properties of the tube the suitable parameters for different kind of metal tubes should be optimized according to the characteristics of the deformation behavior of the metal tubes during the CRB process.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (3 results)

All 2014 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] Formulation of Equivalent Plastic Strain Accumulated in Rotating Bending Process of Metal Tubes for Severe Plastic Deformation2014

    • Author(s)
      Z.C. Zhang, K. Manabe, T. Furushima, K. Tada
    • Journal Title

      Advanced Materials Research

      Volume: 887-888 Pages: 907-911

    • DOI

      10.4028/www.scientific.net/amr.887-888.907

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 回転曲げ繰返し強加工による銅管の結晶粒微細化2014

    • Author(s)
      真鍋 健一, 張 自成, 古島 剛, 高橋 健太
    • Organizer
      日本銅学会第54回講演大会
    • Place of Presentation
      横浜,日本
    • Year and Date
      2014-11-08 – 2014-11-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] Formulation of Equivalent Plastic Strain Accumulated in Rotating Bending Process of Metal Tubes for Severe Plastic Deformation

    • Author(s)
      Zicheng Zhang
    • Organizer
      4th International Conference on Advances in Materials and Manufacturing Processes(ICAMMP 2013)
    • Place of Presentation
      Kunming, China
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2021-04-07  

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