Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Fracture Behavior of Oxide Scales and Influence of Oxide Scales on the Strength of Materials

산화피막의 파괴거동 및 산화피막이 소지금속의 기계적 강도에 미치는 영향

  • 손일령 (POSCO 기술연구소 자동차소재연구그룹) ;
  • 최진원 (POSCO 기술연구소 자동차소재연구그룹) ;
  • Published : 2004.02.01
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Abstract

An Fe-25Cr steel was oxidized in Ar atmosphere at 973K with and without applying external stress of 30∼35 MPa. A 0.1$\mu\textrm{m}$ thick $Cr_2O_3$ scales formed during pre-treatment in Ar atmosphere. Initiation of cracking on the oxide scales took place at grain boundaries during the end of second creep stage, in which cracks were found nearly perpendicular to the tensile directions. On the contrary, a scale developed in $N_2$-0.1%$SO_2$ displaced a poor adherence on the metal substrate. In this sample, a fast grown of scales was observed during creep deformation, and the strength of materials was much lower than in Ar. The creep strain rate of $1.5{\times}10^{-7}/s$ and $5.8{\times}10^{-7}/s$ was determined in Ar and in $N_2$-0.1%$SO_2$ under 30MPa, respectively.

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References

  1. Mater. Sci. Technol. v.3 Oxidation of alloys G.C.Wood;F.H.Stott.
  2. Mater. Sci. Technol. v.6 Interaction Between Oxidation and Mechanical Properties of 25Cr-20Ni-Nb stabilized stainless steel M.J.Bennett;A.C.Robers;M.W.Spindler;D.H.Wells https://doi.org/10.1179/026708390790189434
  3. Mater. Sci. Technol. v.3 Modelling Creep Corrosion Interactions in Nickel-Base Superalloys B.F.Dyson;S.Osgerby https://doi.org/10.1080/02670836.1987.11782266
  4. Mater. Sci. Technol. v.6 no.1 Influence of Sulphidation and Carburization on Creep V.Guttmann https://doi.org/10.1179/026708390790189371
  5. Metall. Trans. A v.26A no.8 The Influence of the Sulfur/Oxygen Ratio in the Environment on the Creep and Creep Damage Behavior of a Heat-Resistant Steel M.F.Stroosnijder;V.Guttmann;J.H.W.De Witt.
  6. Mater. High Temp. v.12 no.2-3 Failure of Oxide Scales P.Hancock;J.R.Nicholls https://doi.org/10.1080/09603409.1994.11689488
  7. Corros. Sci. v.36 The Effect of Pre-oxidation and the Influence of Deformation on the Corrosion Behavior of Two Heat Resistant Steels in a Sulphur-Oxyen-Carbon Bearing Environment M.F.Stoosnijder;V.Guttmann;J.H.W.De Witt. https://doi.org/10.1016/0010-938X(94)90153-8
  8. Nature v.216 Oxidation of Iron-Chromium Binary Alloys D.K.Footner;D.R.Holmes;D.Mortimer https://doi.org/10.1038/216054a0
  9. Mater. High Temp. v.14 no.2 Laboratory Studies Involving Corrosion in Complex, Multi-component Gaseous Environments at Elevated Temperature F.H.Stott;J.F.Norton https://doi.org/10.1080/09603409.1997.11689535
  10. Hokkaido University I.R.Sohn;Ph.D.Thesis
  11. J. Electrochem. Soc. v.119 no.8 The Influence of Anodic Coatings on Slip in Aluminum P.Mehdizadeh;R.J.Block https://doi.org/10.1149/1.2404404
  12. Phil. Mag. v.44 Interaction of dislocations and boundaries A.K.Head https://doi.org/10.1149/1.2404404
  13. Int. J. Eng. Sci. v.5 The interaction of a dislocation with a coated plane boundary G.H.Conners https://doi.org/10.1016/0020-7225(67)90052-3
  14. Nature v.133 Strength of Metal Single Crystals R.Roscoe https://doi.org/10.1016/0020-7225(67)90052-3

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