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EFFECT OF ε MARTENSITE ON THE DAMPING PROPERTY OF FE-(CR, AL)-MN SYSTEM ALLOYS

Research Project

Project/Area Number 13650757
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionNAGOYA UNIVERSITY

Principal Investigator

MIYAHARA Kazuya  NAGOYA UNIVERSITY DEPT.OF MOLECULAR DESIGN AND ENG, ASSOC.PROF., 工学研究科, 助教授 (70011096)

Co-Investigator(Kenkyū-buntansha) AOYAMA Haruo  JAPAN METALS INDUSTRY, INST.FOR R AND D OF MATERIALS, CHIEF RESEARCHER, 新素材研究部, 主任研究員
SHINODA Takeshi  NAGOYA UNIVERSITY DEPT.OF MATERIALS PROCESSING AND ENG., ASSOC.PROF., 工学研究科, 助教授 (10023269)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2001: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsDAMPING PROPERTY / ε MARTENSITE / FE-CR-MN ALLOY / INTERNAL FRICTION / MICROSTRUCTURE / εマルテンサイト相 / εマルテンサイト / Fe-Al-Mn系合金
Research Abstract

In the present research, effects of (1) alloying elements of Cr, Mn, Co and N, (2) thermomechanical treatments and (3) microstructure and phases of a (bcc, inducing α^1 phase (bct)), γ and ε on the damping property of Fe-5〜12%Cr-6〜30%Mn-0〜4%Co alloys have been investigated and the present investigators have develped a new Fe-Cr-Mn-Co alloy with high strength and high damping property. Brief summaries are made as followings,
(1) The highest damping property has been obtained on the Fe-12%Cr-22%Mn alloy which are cold rolled by 15 to 50% after the solution treatment at 1373K for 1hr. ε phase has a significant effect for increasing the damping property of Fe-12%Cr-22%Mn alloy, whicle α , α^1 and γ phases have no effect on the damping property of the alloy.
(2) The addition of 4%Co is very effective to give the high damping property to the Fe-12%Cr-22%Mn alloy.
(3) Cold rolling temperature and subzero treatment are alos important factor t for increasing damping property of Fe-Cr-Mn-Co alloys. Fe-12%Cr-22%Mn-4%Co alloy winch is 50% cold rolled at 360K and subzero treated at 223K has the highest damping property.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report

Research Products

(6 results)

All Other

All Publications (6 results)

  • [Publications] H.Okada, H.Sahashi, I-S.Kim, C-Y.Kang, N.Igata, K.Miyahara: "Effect of Epsilon Martensite on the Damping of High Strength Fe-Cr-Mn Alloys"Mater. Sci. Eng. A. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.Okada, H.Sahashi, N.Igata, K.Miyahara: "Effect of ε Martensite and Nitrogen on the Damping Property of High Strength Fe-Cr-Mn Alloys"Proc. of Intern. Symp. on High Damping Materials (Aug., 21-23, 2002, Tokyo, Japan, edited by N.Igata et al.). (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.OKADA, H.SAHASHI, I-S.KIM, C-Y.KANG, N.IGATA AND K.MIYAHARA: "EFFECT OF EPSILON MARTENSITE ON THE DAMPING OF HIGH STRENGTH FE-CR-MN ALLOYS"MATER.SCI.ENG.A. IN PRESS. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.OKADA, H.SAHASHI, N.IGATA AND K.MIYAHARA, EDITED BY N.IGATA ETAL.: "EFECTOF ε MARTENSITE AND NITROGEN ON THE DAMPING PROPERTY OF HIGH STRENGTH FE-CR-MN ALLOYS, (AUG.21-23)"PROC.OF INTERN.SYMP.ON HIGH DAMPING MATERIALS.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H.Okada, H.Sahashi, I-S.Kim, C-Y.Kang, N.Igata, K.Miyahara: "Effect of Epsilon Martensite on the Damping of High Strength Fe-Cr-Mn Alloys"Mater.Sci.Eng.A. (in printing).

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Okada, H.Sahashi, N.Igata, K.Miyahara: "Effect of ε・Martensite and Nitrogen on the Damping Property of High Strength Fe-Cr-Mn Alloys"Proc. of Intern : Symp. on High Damping Materials (HDM2002, Aug., 21-23, 2002, Tokyo, Japan, edited by N.Igata et al.. (in printing).

    • Related Report
      2002 Annual Research Report

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Published: 2001-03-31   Modified: 2016-04-21  

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