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Preparation of Corrosion-Resistant Bulk Amorphous Alloys

Research Project

Project/Area Number 11650731
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Material processing/treatments
Research InstitutionHOKKAIDO UNIVERSITY (2000)
Tohoku University (1999)

Principal Investigator

HABAZAKI Hiroki  Hokkaido Univ. Grad. School of Eng., Assoc. Prof., 大学院・工学研究科, 助教授 (50208568)

Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2000: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1999: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsAmorphous alloys / Bulk materials / Corrosion resistance / Copper mold casting / Gas atomization / Sheath rolling / Super-cooled liquid / Spontaneous passivation / バルク合金 / ナノ結晶 / 不働態 / TEM
Research Abstract

Corrosion-resistant bulk Ni-Cr-Nb-P-B, Ni-Cr-Ta-P-B and Ni-Cr-Me-P-B alloys with cylindrical shape of 1 and 2 mm diameter are prepared by a copper mold casting method. A good correlation between the glass forming ability and stability of super-cooled liquid state has been found for these alloy systems except the molybdenum-containing alloy system. The bulk amorphous alloys thus prepared are spontaneously passive even in very aggressive 6M and 12M HCl solutions open to air at 303 K.The bulk amorphous alloys reveal the same anodic and cathodic polarization curves as the corresponding melt-spun alloy ribbons, as far as amorphous single phase alloys are obtained. Precipitation of fcc Ni phase in the bulk amorphous alloys is detrimental to the corrosion resistance of the alloys. The influence of the precipitation is, however, strongly dependent upon the size of the precipitates. When fcc Ni with size of 20〜nm is formed in the amorphous matrix, the alloys show about two orders of magnitude higher passive current density in comparison with the amorphous single phase alloys. In contrast, precipitation of fcc Ni with only 2-3 nm size results in the increase only twice in the passive current density. Bulk amorphous Ni-10Cr-5Nb-16P-4B alloy plates of 2 mm thickness are also prepared by consolidation of gas-atomized amorphous alloy powders by sheath rolling at a super-cooled liquid state, that is, 708 K.The bulk alloy thus prepared is found to reveal similar extremely low corrosion rate in 6M HCl at 303 K to the corresponding melt-spun alloy. However, in 12M HCl solution, the sheath-rolled alloy shows preferential corrosion attack at boundaries of the gas-atomized powders, possibly due to the influence of the oxidation of the particle surface during heating for consolidation. Thus, further improvement of the preparation processes to obtain highly corrosion-resistant bulk amorphous alloys using this method.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (41 results)

All Other

All Publications (41 results)

  • [Publications] K.Hashimoto: "The critical size and nature of nanocrystalline heterogeneity for pitting corrosion"Proc.Symp.Critical Factors in Localized Corrosion. 245-255 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] X.-Y.Lee: "Electrochemical and XPS studies of the corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Nb alloys in 6 M HCl"Corrosion Science. 41. 1095-1118 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Mehmood: "The degradation of the corrosion resistance of sputter-deposited chromium-titanium alloys by nanoscale heterogeneity"Corrosion Science. 41. 1871-1890 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] X.-Y.Lee: "The corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Ta alloys in 12 M HCl"Corrosion Science. 41. 1849-1869 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Hashimoto: "Spontaneously passive amorphous Fe-Cr-Ni-Ta alloys in 12M HCl"Proc.14^<th> International Congress of Corrosion. 400. 1-10 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki: "Sulfidation- and oxidation-resistant alloys prepared by sputter deposition"Materials Science and Engineering. A267. 267-276 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Mehmood: "Effects of nanocrystalline heterogeneity on the corrosion behavior of sputter-deposited chromium-niobium alloys"Corrosion Science. 42. 361-382 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] D.B.Lee: "High temperature oxidation of a Nb-Al-Si coating sputter-deposited on titanium"Corrosion Science. 42. 721-729 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki: "Importance of amorphous-to-crystalline transitions for ionic transport and oxygen generation in anodic films"Philosophical Magazine A. 80. 1027-1042 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki: "Formation of extremely protective diffusion-barrier scales on novel Al-refractory metal alloys during high temperature sulfidation"Solid State Phenomena. 72. 17-22 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki: "The behaviour of iron during anodic oxidation of sputter-deposited Al-Fe alloys"Proc.2^<nd> Int. Symp. Aluminium Surface Science and Technology. 151-157 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Katagiri: "Synergistic effect of three corrosion-resistant elements on corrosion resistance in concentrated hydrochloric acid"Corrosion Science. 43. 171-182 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Katagiri: "An attempt at preparation of corrosion-resistant bulk amorphous Ni-Cr-Ta-P-B alloys"Corrosion Science. 43. 183-191 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki: "Preparation of corrosion-resistant amorphous Ni-Cr-P-B bulk alloys containing molybdenum and tantalum"Materials Science and Engineering. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Hashimoto, M.Mehmood, X.-Y.Li, E.Akiyama, H.Habazaki, A.Kawashima and K.Asami: "The critical size and nature of nanocrystalline heterogencity for pitting corrosion"Proc. Symp. Critical Factors in Localized Corrosion. 245-255 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] X.-Y.Li, E.Akiyama, H.Habazaki, A.Kawashima, K.Asami and K.Hashimoto: "Electrochemical and XPS studies of the corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Nb alloys in 6 M HCl"Corros. Sci.. 41. 1095-1118 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] X.-Y.Li, E.Akiyama, H.Habazaki, A.Kawashima, K.Asami and K.Hashimoto: "The corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Ta alloys in 12 M HCl"Corros. Sci.. 41. 1849-1869 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Mehmood, E.Akiyama, H.Habazaki, A.Kawashima, K.Asami and K.Hashimoto: "The degradation of the corrosion resistance of sputter-deposited chromium-titanium alloys by nanoscale heterogeneity"Corros. Sci.. 41. 1871-1890 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Hashimoto, X.-Y.Li, E.Akiyama, H.Habazaki, A.Kawashima and K.Asami: "Spontaneously passive amorphous Fe-Cr-Ni-Ta alloys in 12M HCl"14^<th> Int. Cong. Corrosion.. No.400. 1-10 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki, K.Hon-yashiki, A.Kawashima, K.Asami and K.Hashimoto: "Sulfidation- and oxidation-resistant alloys prepared by sputter deposition"Mater. Sci. Eng.. A267. 267-276 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Mehmood, E.Akiyama, H.Habazaki, A.Kawashima, K.Asami and K.Hashimoto: "Effects of nanocrystalline heterogeneity on the corrosion behavior of sputter-deposited chromium-niobium alloys, Pages 361-382"Corros. Sci.. 42. 361-382 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] D.B.Lee, H.Habazaki, A.Kawashima and K.Hashimoto: "High temperature oxidation of a Nb-Al-Si coating sputter-deposited on titanium"Corros. Sci.. 42. 721-729 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki, K.Takahiro, S.Yamaguchi, K.Shimizu, P.Skeldon, G.E.Thompson and G.C.Wood: "Importance of amorphous-to-crystalline transitions for ionic transport and oxygen generation in anodic films"Phil. Mag. A. 80. 1027-1042 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki, K.Hon-yashiki, K.Hashimoto and S.Mrowec: "Formation of extremely protective diffusion-barrier scales on novel Al-refractory metal alloys during high temperature sulfidation"Solid State Phenom. 72. 17-22 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki, K.Shimizu, P.Skeldon, G.E.Thompson and G.C.Wood: "The behavior of iron during anodic oxidation of sputter-deposited Al-Fe alloys"Proc. 2^<th> Int. Symp. Aluminium Surf. Sci. and Tech.. 151-157 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Katagiri, S.Meguro, M.Yamasaki, H.Habazaki, T.Sato, A.Kawashima, K.Asami and K.Hoshimoto: "Synergistic effect of three corrosion-resistant elements on corrosion resistance in concentrated hydrochloric acid"Corros. Sci.. 43. 171-182 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Katagiri, S.Meguro, M.Yamasaki, H.Habazaki, T.Sato, A.Kawashima, K.Asami and K.Hashimoto: "An attempt at preparation of corrosion-resistant bulk amorphous Ni-Cr-Ta-P-B alloys"Corros. Sci.. 43. 183-191 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Habazaki: "Preparation of corrosion-resistant amorphous Ni-Cr-P-B bulk alloys containing molybdenum and tantalum"Mater. Sci. Eng.. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Mehmood: "Effects of nanocrystalline heterogeneity on the corrosion behavior of sputter-deposited chromium-niobium alloys"Corrosion Science. 42. 361-382 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] D.B.Lee: "High temperature oxidation of a Nb- Al- Si coating sputter-deposited on titanium"Corrosion Science. 42. 721-729 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Habazaki: "Importance of amorphous-to-crystalline transitions for ionic transport and oxygen generation in anodic films"Philosophical Magazine A. 80. 1027-1042 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Habazaki: "Formation of extremely protective diffusion-barrier scales on novel Al-refractory metal alloys during high temperature sulfidation"Solid State Phenomena. 72. 17-22 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Habazaki: "The behaviour of iron during anodic oxidation of sputter-deposited Al-Fe alloys"Proc.2^<nd> Int.Symp.Aluminium Surface Science and Technology. 151-157 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Katagiri: "Synergistic effect of three corrosion-resistant elements on corrosion resistance in concentrated hydrochloric acid"Corrosion Science. 43. 171-182 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Katagiri: "An attempt at preparation of corrosion-resistant bulk amorphous Ni-Cr-Ta-P-B alloys"Corrosion Science. 43. 183-191 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] H. Habazaki: "Preparation of corrosion-resistant amorphous Ni-Cr-P-B bulk alloys containing molybdenum and tantalum"Materials Science and Engineering. (印刷中).

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Hashimoto: "The critical size and nature of nanocrystalline heterogeneity for pitting corrosion"Symp. Critical Factors in Localized Corrosion. 245-255 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] X.-Y.Li: "Electrochemical and XPS studies of the corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Nb alloys in 6 M HCl"Corrosion Science. 41. 1095-1118 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Mehmood: "The degradation of the corrosion resistance of sputter-deposited chromium-titanium alloys by nanoscale heterogeneity"Corrosion Science. 41. 1871-1890 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] X.-Y.Li: "The corrosion behavior of sputter-deposited amorphous Fe-Cr-Ni-Ta alloys in 12M HCl"Corrosion Science. 41. 1849-1869 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] K.Hashimoto: "Spontaneously passive amorphous Fe-Cr-Ni-Ta alloys in 12M HCl"14th Int. Congress Corrosion. No.400. 1-10 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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