• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Phase Equilibria on Fe-Cu Based Alloys Used for Electrically Conductive Materials

Research Project

Project/Area Number 07650864
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Metal making engineering
Research InstitutionTohoku University

Principal Investigator

NAGASAKA Tetsuya  Faculty of Engineering, Tohoku University Associate Professor, 工学部, 助教授 (30180467)

Co-Investigator(Kenkyū-buntansha) HINO Mitsutaka  Faculty of Engineering, Tohoku University Professor, 工学部, 教授 (10091729)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1996: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1995: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsPhase diagram / Fe-Cu alloy / Thermodynamic assessment / Fe-Cu-Si alloy / Fe-Cu-P alloy / Electrically conductive material / Phase equilibria / Thermodynamics
Research Abstract

It is known that many Fe-Cu based alloys have wide miscibility gap in liquid phase, and by utilizing such phase separation some Fe-Cu based alloys are used as an electrically conductive and a soft-magnetic materials in which fine Cu-rich phase precipitates on iron matrix. Fe-Cu-Si and Fe-Cu-P are typical examples of such alloy systems. Fe-Cu-Si and Fe-Cu-P ternaries are also basic alloy systems formed in the remelting process of incinerated ash which is recently being developed. Moreover, it is important to understand thermodynamic properties of Fe-Cu system to remove copper from remelted steel scrap. In spite of such importance, phase diagrams of Fe-Cu based ternary alloys are not well established. The objective of the present work is to establish phase diagrams and thermodynamic properties of Fe-Cu-Si and Fe-Cu-P ternary alloys. In 1995, solubility of FeSi compound, solid Si in liquid phase and tie lines between two immiscible liquid phases in Fe-Cu-Si system have been measured in the temperature range from 1250゚C to 1550゚C.As the results, observed phase equilibria differed from the literature phase diagram proposed by Chang et al. In 1996, tie lines between solid iron and copper-rich melt in Fe-Cu-P system were determined at 1250゚C by solid-liquid diffusion couple technique. Measured phase equilibria of Fe-Cu-P system also differed from the literature phase diagram. Phase diagrams of Fe-Cu-Si and Fe-Cu-P systems were thermodynamically assessed based on the sub-regular solution model.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 長坂徹也: "Fe-Cu-P系合金の相平衡" 材料とプロセス. 8. 1025-1025 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Nagasaka: "Fundamental Studies on the Removal of Cu,Sn and Zn from Remelted Steel Scrap" Steelmaking Conference Proceedings. 79. 589-597 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 鷲巣 敏: "都市ごみ焼却灰溶融処理プロセスで生成するメタル相の相平衡と粘度" 日本学術振興会製鋼第19委員会反応プロセス研究会資料. 19委-11635. 1-27 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Mitsutaka Hino: "Activity of Phosphorus in a-Fe and Phase Diagram of Fe-P Binary System Above 1273K" Zeitschurift fur Metallkunde. 88(印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 日野光兀: "鉄スクラプ中のトランプエレメント分離法に関する基礎的検討" 日本鉄鋼協会循環性元素分離研究会, 307 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Nagasaka: "Phase Equilibria on Fe-Cu-P Ternary Alloys" Current Advances in Materials and Processes. 8. 1025-1025 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Nagasaka: "Fundamental Studies on the Removal of Cu, Sn and Zn from Remelted Steel Scrap" Steelmaking Conference Proceedings. 79. 589-597 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Washizu: "Phase Equilibria and Viscosities of Metal Phase Formed in the Remelting Process of Incinerated Ash" Report for The Subcommittee for Steelmaking Reactions, 19th Committee for Steelmaking, The Japanese Society for Promotion of Science. 11635. 1-27 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Hino: "Activity of Phosphorus in alpha-Fe and Phase Diagram of Fe-P Binary System Above 1273K" Zeitschurift fur Metallkunde 88. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Hino: "Fundamental Studies on Separation of Residual Elements from Steel Scrap" The Iron and Steel Institute of Japan. 307. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Nagasaka: "Fundamental Studies on the Removal of Cu, Sn and Zn from Remelted Steel Scrap" Steelmaking Conference Proceedings. 79. 589-597 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 日野光兀: "鉄スクラップ中のトランプエレメント分離法に関する基礎的検討" 日本鉄鋼協会循環性元素分離研究会, 307 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 長坂徹也: "Fe-Cu-P系合金の相平衡" 材料とプロセス. 8. 1025 (1995)

    • Related Report
      1995 Annual Research Report

URL: 

Published: 1995-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi