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Journal of Materials Engineering and Performance

, Volume 28, Issue 10, pp 6307–6319 | Cite as

Comparative Evaluation of Creep-Rupture Behavior of P9 Steel Plate and Thick Section Tubeplate Forging

  • B. K. Choudhary
  • Isaac Samuel E. Email author
  • Christopher J. 
  • S. D. Yadav
Article
  • 57 Downloads

Abstract

In the present investigation, creep-rupture behavior of P9 steel in two different product forms of 20-mm plate and 300-mm-thick tubeplate forging has been studied at 793 and 873 K. It has been found that steady-state creep rate and rupture life followed power law dependence on applied stress at low and high stress regimes for both forms of products. At high stress regime, P9 steel plate exhibited better creep strength with respect to tubeplate forging in terms of lower creep rate and higher rupture life at 793 and 873 K. On contrary, both product forms exhibited similar creep rate and rupture behavior in the low stress regime at 873 K. Difference in creep ductility has been found to be insignificant in both product forms. Irrespective of test conditions and product forms, fracture appearance remained transgranular ductile characterized by dimples. The comparative evaluation of creep-rupture properties of both product forms has also been described in terms of creep rate-rupture life relationships of Monkman–Grant type, creep damage tolerance and tertiary creep characteristics at 793 and 873 K.

Keywords

creep damage P9 steel rupture life steady-state creep rate tubeplate forging 

Notes

References

  1. 1.
    S.L. Mannan, S.C. Chetal, B. Raj, and S.B. Bhoje, Selection of Materials for Prototype Fast Breeder Reactor, Trans. Indian Inst. Met., 2003, 56, p 155–178Google Scholar
  2. 2.
    R.L. Klueh, Elevated Temperature Ferritic and Martensitic Steels and Their Application to Future Nuclear Reactors, Int. Mater. Rev., 2005, 50, p 287–310Google Scholar
  3. 3.
    F. Abe, M. Tabuchi, M. Kondo, and S. Tsukamoto, Suppression of Type IV Fracture and Improvement of Creep Strength of 9Cr Steel Welded Joints by Boron Addition, Int. J. Pres. Ves. Pip., 2007, 84, p 44–52Google Scholar
  4. 4.
    J. Hald, Creep Strength and Ductility of 9 to 12% Chromium Steels, Mater. High Temp., 2004, 21, p 41–46Google Scholar
  5. 5.
    B. Raj, Challenges to Material Scientists and Technologists for Robust and Economical Fast Reactor Technology, Pressure Vessels and Piping: Codes, Standards, Design and Analysis, B. Raj, B.K. Choudhary, and K. Velusamy, Ed., Narosa Publishing House, New Delhi, 2009, p 1–32Google Scholar
  6. 6.
    P.F. Giroux, F. Dalle, M. Sauzay, J. Malaplate, B. Fournier, and A.F. Gourgues-Lorenzon, Mechanical and Microstructural Stability of P92 Steel Under Uniaxial Tension at High Temperature, Mater. Sci. Eng. A, 2010, 527, p 3984–3993Google Scholar
  7. 7.
    K.J. Harrelson, S.H. Rou, and R.C. Wilcox, Impurity Element Effects on the Toughness of 9Cr-1Mo Steel, J. Nucl. Mater., 1986, 141, p 508–512Google Scholar
  8. 8.
    M.D. Mathew, J. Vanaja, K. Laha, G.V. Reddy, K.S. Chandravathi, and K.B.S. Rao, Tensile and Creep Properties of Reduced Activation Ferritic–Martensitic Steel for Fusion Energy Application, J. Nucl. Mater., 2011, 417, p 77–80Google Scholar
  9. 9.
    B. Raj and B.K. Choudhary, A Perspective on Creep and Fatigue Issues in Sodium Cooled Fast Reactors, Trans. Indian Inst. Met., 2010, 63, p 75–84Google Scholar
  10. 10.
    S.D. Yadav, B. Sonderegger, M. Stracey, and C. Poletti, Modelling the Creep Behavior of Tempered Martensitic Steel Based on a Hybrid Approach, Mater. Sci. Eng. A, 2016, 662, p 330–341Google Scholar
  11. 11.
    S.D. Yadav, T. Scherer, G.V.P. Reddy, K. Laha, and S.K. Albert, Cecilia Poletti, Creep Modelling of P91 Steel Employing a Microstructural Based Hybrid Concept, Eng. Frac. Mech., 2018, 200, p 104–114Google Scholar
  12. 12.
    B.K. Choudhary and E. Isaac Samuel, Creep Behavior of Modified 9Cr-1Mo Ferritic Steel, J. Nucl. Mater., 2011, 412, p 82–89Google Scholar
  13. 13.
    B.K. Choudhary, Tertiary Creep Behavior of 9Cr-1Mo Ferritic Steel, Mater. Sci. Eng. A, 2013, 585, p 1–9Google Scholar
  14. 14.
    J. Orr and S.J. Sanderson, An Examination of the Potential for 9%Cr-1%Mo Steel as Thick Sections Tube Plate in Fast Reactors, in Proceedings Topical Conference on Ferritic Alloys for use in Nuclear Energy Technologies (1983), pp. 261–267Google Scholar
  15. 15.
    S.J. Sanderson and S. Jacques, Some Elevated Temperatures Tensile and Strain Controlled Fatigue Properties for a 9%Cr-1%Mo Steel Heat Treated to Simulate Thick Section Material, in Proceedings IAEA Specialist Meeting on Mechanical Properties of Structural Materials including Environmental Effects, 1983, Report IWGFR-49, vol. 2 (1984), pp. 601–611Google Scholar
  16. 16.
    B.J. Cane and R.S. Fiddler, The Effect of Microstructure and Grain Size of the Creep and Rupture Properties of 2¼ Cr-Mo and 9Cr-1Mo Steels, in Proceedings of International Conference Ferritic Steels for Fast Reactor Steam Generators (1977), pp. 193–199Google Scholar
  17. 17.
    D.S. Wood, A.B. Baldwin, F.W. Grounds, J. Wynn, E.G. Wilson, and J. Waring, Mechanical Properties Data on 9% Cr Steel, in Proceedings of International Conference Ferritic Steels for Fast Reactor Steam Generators (1977), pp. 189–192Google Scholar
  18. 18.
    B.K. Choudhary, S. Saroja, K.B.S. Rao, and S.L. Mannan, Creep-Rupture Behavior of Forged, Thick Section 9Cr-1Mo Ferritic Steel, Metall. Mater. Trans. A, 1999, 30, p 2825–2834Google Scholar
  19. 19.
    A. Kumar, B.K. Choudhary, T. Jayakumar, K. Bhanu Sankara Rao, and B. Raj, Influence of Thermal Ageing and Creep on Ultrasonic Velocity in 9Cr-1Mo Ferritic Steel at 873K, Trans. Indian Inst. Met., 2000, 53, p 235–238Google Scholar
  20. 20.
    B.K. Choudhary, C. Phaniraj, K.B.S. Rao, and S.L. Mannan, Creep Deformation Behaviour and Kinetic Aspects of 9Cr-1Mo Ferritic Steel, ISIJ Int., 2001, 41, p S73–S80Google Scholar
  21. 21.
    T. Shrestha, M. Basirat, I. Charit, G.P. Potirniche, K.K. Rink, and U. Sahaym, Creep Deformation Mechanisms in Modified 9Cr-1Mo Steel, J. Nucl. Mater., 2012, 423, p 110–119Google Scholar
  22. 22.
    R. Lagneborg and B. Bergman, The Stress/Creep Rate Behavior of Precipitation-Hardened Alloys, Met. Sci., 1976, 10, p 20–28Google Scholar
  23. 23.
    M. Kerr and N. Chawla, Creep Deformation Behavior of Sn–3.5 Ag Solder/Cu Couple at Small Length Scales, Acta Mater., 2004, 52, p 4527–4535Google Scholar
  24. 24.
    B.K. Choudhary, K.B.S. Rao, and S.L. Mannan, Steady State Creep Deformation Behavior of 9Cr-1Mo Ferritic Steel Forging in Quenched and Tempered Condition, Trans. Indian Inst. Met., 1999, 52, p 327–336Google Scholar
  25. 25.
    K.R. Williams and B. Wilshire, Effects of Microstructural Instability on the Creep and Fracture Behavior of Ferritic Steels, Mater. Sci. Eng., 1977, 28, p 289–296Google Scholar
  26. 26.
    D.A. Miller, A Constitutive Equation for Creep Deformation of 1CrMoV Ferrritic Steel at 823-838 K, Mater. Sci. Eng., 1982, 54, p 169–176Google Scholar
  27. 27.
    C.A. Hippseley and N.P. Haworth, Hydrogen and Temper Embrittlement in 9Cr-1Mo Steel, Mater. Sci. Technol., 1988, 4, p 791–802Google Scholar
  28. 28.
    B.A. Senior, F.W. Nobble, and B.L. Eyre, The Effect of Ageing on the Ductility of 9Cr-1Mo Steel, Acta Metall., 1988, 36, p 1855–1862Google Scholar
  29. 29.
    M.I. Isik, A. Kostka, V.A. Yardley, K.G. Pradeep, M.J. Duarte, P.P. Choi, D. Raabe, and G. Eggeler, The Nucleation of Mo-Rich Laves Phase Particles Adjacent to M23C6 Micrograin Boundary Carbides in 12% Cr Tempered Martensite Ferritic Steels, Acta Mater., 2015, 90, p 94–104Google Scholar
  30. 30.
    V.M. Radhakrishnan, The Relationship Between Minimum Creep Rate and Rupture Time in Cr-Mo Steels, J. Mater. Eng. Perform., 1992, 1(1), p 123–128Google Scholar
  31. 31.
    F. Dobes and K. Milicka, The Relation Between Minimum Creep Rate and Time to Fracture, Met. Sci., 1976, 10, p 382–384Google Scholar
  32. 32.
    F.A. Leckie and D.R. Hayhurst, Constitutive Equations for Creep Rupture, Acta Metall., 1977, 25, p 1059–1070Google Scholar
  33. 33.
    M.F. Ashby and B.F. Dyson, Creep Damage Mechanics and Micromechanisms, in Advances in Fracture Research (1984), pp. 3–30Google Scholar
  34. 34.
    C. Phaniraj, B.K. Choudhary, K.B.S. Rao, and B. Raj, Relationship Between Time to Reach Monkman–Grant Ductility and Rupture Life, Scr. Mater., 2003, 48, p 1313–1318Google Scholar
  35. 35.
    C. Phaniraj, B.K. Choudhary, B. Raj, and K.B.S. Rao, A Critical Damage Criterion for Creeping Solids, J. Mater. Sci., 2005, 40, p 2561–2564Google Scholar
  36. 36.
    F.A. Leckie and D.R. Hayhurst, Creep Rupture of Structures, Proc. R. Soc. Lond. Ser. A, 1974, 340, p 323–347Google Scholar
  37. 37.
    B.F. Dyson and T.B. Gibbons, Tertiary Creep in Nickel-Base Superalloys: Analysis of Experimental Data and Theoretical Synthesis, Acta Metall., 1987, 35, p 2355–2369Google Scholar
  38. 38.
    K. Kimura, H. Kushima and G.R. Booker, Heterogeneous Changes in Microstructure and Degradation Behaviour of 9Cr-1Mo-V-Nb Steel During Long Term Creep, in Key Engineering Materials, vol. 171 (Trans Tech Publications, 2000), pp. 483–490.Google Scholar
  39. 39.
    B. Wilshire and P.J. Scharning, A New Methodology for Analysis of Creep and Creep Fracture Data for 9-12% Chromium Steels, Int. Mater. Rev., 2008, 53, p 91–104Google Scholar
  40. 40.
    T. Sakthivel, S. Panneer Selvi, and K. Laha, An Assessment of Creep Deformation and Rupture Behaviour of 9Cr-1.8W-0.5Mo-VNb (ASME grade 92) Steel, Mater. Sci. Eng. A, 2015, 640, p 61–71Google Scholar
  41. 41.
    V. Sklenicka, K. Kucharova, P. Kral, M. Kvapilova, and J. Dvorak, Applicability of Empirical Formulas and Fractography for Assessment of Creep Life and Creep Fracture Modes of Tempered Martensitic 9%Cr Steel, Kov. Mater., 2017, 55, p 69–80Google Scholar
  42. 42.
    B.K. Choudhary, Microstructural Degradation and Development of Damage During Creep in 9% Chromium Ferritic Steels, Trans. Indian Inst. Met., 2016, 69, p 189–195Google Scholar
  43. 43.
    F. Abe, T. Noda, H. Araki, and S. Nakazawa, Alloy Composition Selection for Improving Strength and Toughness of Reduced Activation 9Cr-W Steels, J. Nucl. Mater., 1991, 179–181, p 663–666Google Scholar
  44. 44.
    F. Abe and S. Nakazawa, The Effect of Tungsten on Creep, Metall. Trans. A, 1992, 23, p 3025–3034Google Scholar
  45. 45.
    W.G. Kim, J.Y. Park, B.K. Choudhary, S.J. Kim, M.H. Kim, and J. Jang, Influence of Data Size on the Reliability Assessment of Creep Life of Grade 91 Steel, J. Mech. Sci. Technol., 2014, 28(11), p 4493–4501Google Scholar
  46. 46.
    A.A.F. Tavassoli, J.W. Rensman, M. Schirra, and K. Shiba, Materials Design Data for Reduced Activation Martensitic Steel Type F82H, Fusion Eng. Des., 2002, 61–62, p 617–628Google Scholar
  47. 47.
    A. Moslang, E. Diegele, M. Klimiankou, R. Lasser, R. Lindau, E. Lucon, E. Materna-Morris, C. Petersen, R. Pippan, J.W. Rensman, M. Rieth, B. van der Schaaf, H.C. Schneider, and F. Tavassoli, Towards Reduced Activation Structural Materials Data for Fusion DEMO Reactors, Nucl. Fusion, 2005, 45, p 649–655Google Scholar
  48. 48.
    F. Masuyama, Creep Rupture Life and Design Factors for High-Strength, Int. J. Pres. Ves. Pip., 2007, 84, p 53–61Google Scholar
  49. 49.
    J. Zhao, D.M. Li, and Y.Y. Fang, Application of Manson-Haferd and Larson-Miller Methods in Creep Rupture Property Evaluation of Heat-Resistant Steels, J. Pres. Ves. Technol., 2010, 132(064502), p 1–4Google Scholar
  50. 50.
    V.S. Srinivasan, B.K. Choudhary, M.D. Mathew, and T. Jayakumar, Long-Term Creep-Rupture Strength Prediction for Modified 9Cr-1Mo Ferritic Steel and Type 316L (N) Austenitic Stainless Steel, Mater. High Temp., 2012, 29, p 41–48Google Scholar
  51. 51.
    T. Shrestha, M. Basirat, I. Charit, G.P. Potirniche, and K.K. Rink, Creep Rupture Behavior of Grade 91 Steel, Mater. Sci. Eng. A, 2013, 565, p 382–391Google Scholar
  52. 52.
    N. Cautaerts, R. Delville, W. Dietz, and M. Verwerft, Thermal Creep Properties of Ti-Stabilized DIN 1.4970 (15-15Ti) Austenitic Stainless Steel Pressurized Cladding Tubes, J. Nucl. Mater., 2017, 493, p 154–167Google Scholar
  53. 53.
    L. Cui, H. Su, J. Yu, J. Liu, T. Jin, and X. Sun, The Creep Deformation and Fracture Behaviors of Nickel-Base Superalloy M951G at 900 °C, Mater. Sci. Eng. A, 2017, 707, p 383–391Google Scholar
  54. 54.
    M. Aubert, M.F. Felsen, D. Guttman, and M. Van Duysen, Characterisation of Creusot-Marrel Grade 91 Tubeplate and Mechanical Properties of Grade 91 National Forge Material, in Proceedings of CEA-ENEA-DEBENE/PNC Exchange Meeting with UKAEA on In Air and In Sodium Tests on Structural Materials Including Irradiation Effects (1990), pp. 265–274Google Scholar
  55. 55.
    D.J. Barlow, C.J. Middleton and E. Metcalfe, Properties of Thick and Thin Section Grade 91 Steel for Use in Conventional and Advanced Coal Fired Power Plants, in Proceedings of the Institution Mechanical Engineering International Conference Steam Plants of the 1990’s, (1990), pp. 265–274Google Scholar

Copyright information

© ASM International 2019

Authors and Affiliations

  • B. K. Choudhary
    • 1
    • 2
  • Isaac Samuel E. 
    • 1
    Email author
  • Christopher J. 
    • 1
    • 2
  • S. D. Yadav
    • 1
  1. 1.Materials Development and Technology DivisionIndira Gandhi Centre for Atomic ResearchKalpakkamIndia
  2. 2.Homi Bhabha National InstituteKalpakkamIndia

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