Skip to main content
SpringerLink
Log in

Flow Behavior and Numerical Simulation of Spray-Formed FGH95 Superalloy Under Hot Compression

  • Published:
Journal of Iron and Steel Research International Aims and scope Submit manuscript

Abstract

The flow behavior of spray-formed FGH95 superalloy (similar to Rene 95) was investigated at temperatures ranging from 1050 to 1 140 °C and strain rate ranging from 0.01 to 10 s−1. At a given temperature and strain rate, flow stress increases quickly with increasing strain and then reaches a peak, then gradual decreases until high strain, and dynamic softening is observed. Utilizing the hyperbolic sine function and introducing the strain with nonlinear fitting, the revised constitutive equations incorporating the effects of temperature, strain rate and strain for high temperature flow stress prediction of superalloy were established. The revised constitutive equations were implanted into finite element software by second development to simulate the hot compression process successfully, and the effective stress and load stroke curves obtained by numerical simulation are good agreement with the experimental results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Gronostajski Z. The Constitutive Equations for FEM Analysis [J]. J Mater Process Technol, 2000, 106(1/2/3): 40.

    Article  Google Scholar 

  2. Taleff E M, Hector Jr L G, Bradley J R, et al. The Effect of Stress State on High-Temperature Deformation of Fine-Grained AluminumMagnesium Alloy AA5083 Sheet [J]. Acta Mater, 2009, 57(9): 2812.

    Article  Google Scholar 

  3. Alankar A, Wells M A. Constitutive Behavior of As-Cast Aluminum Alloys AA3104, AA5182 and AA6111 at Below Solidus Temperatures [J]. Mater Sci Eng, 2010, 527A(29/30): 7812.

    Article  Google Scholar 

  4. Lu L, Wang F Z, Wang Z X, et al. Constitutive Relationship of New Steel 33Mn2V and Its Application in Piercing Process by FEM Simulation [J]. J Iron Steel Res Int, 2011, 18(7): 47.

    Article  Google Scholar 

  5. Li Hong-yu, Song Xi-ping, Wang Yan-li, et al. Stability of. γ’ Phase in FGH95 Superalloy [J]. Rare Metal Mater Eng, 2009, 38(1): 64 (in Chinese).

    Article  Google Scholar 

  6. Guo J T. Materials Science and Engineering for Superalloy (2vols.): Superalloy Materials and Engineering Applications [M]. Beijing: Science press, 2010: 251 (in Chinese).

    Google Scholar 

  7. Tao Y, Jia J, Liu J T. Microstructure Characterization and Mechanical Properties of FGH95 Turbine Blade Retainers [J]. J Iron Steel Res Int, 2010, 17(9): 73.

    Article  Google Scholar 

  8. Zhang J G, Shi H S, Sun D S. Research in Spray Forming Technology and Its Applications in Metallurgy [J]. J Mater Process Technol, 2003, 138(1/2/3): 357.

    Article  Google Scholar 

  9. Zhang Guo-qing, Li Zhou, Tian Shi-fan, et al. Spray Formed Superalloys and Their Fabrication Technologies [J]. J Aeronaut Mater, 2006, 26(3): 258 (in Chinese).

    Google Scholar 

  10. Alniak M O, Bedir F. Modelling of Deformation and Microstructural Changes in P/M Rene 95 Under Isothermal Forging Conditions [J]. Mater Sci Eng, 2006, 429A(1/2): 295.

    Article  Google Scholar 

  11. Zhang M C, Dong J X, Zeng Y P, et al A Phenomenological Constitutive Equation for Rene 95 PM Alloy and Its Application to Isothermal Forging Process of Turbine Disk [J]. J Univ Sci Technol, 2002, 9B(4): 282.

    Google Scholar 

  12. Kang F W, Zhang G Q, Sun J F, et al. Hot Deformation Behavior of A Spray Formed Superalloy [J]. J Mater Process Technol, 2008, 204(1/2/3): 147.

    Article  Google Scholar 

  13. Jonas J J, Sellars C M, Tegart W J. Strength and Structure Under Hot Working Conditions [J]. Int Mater Rev, 1969, 14(24): 1.

    Article  Google Scholar 

  14. Zener C, Hollomon J H. Effect of Strain Rate Upon Plastic Flow of Steel [J]. J Appl Phys, 1944, 15(22): 22.

    Article  Google Scholar 

  15. Li W, Li H, Wang Z X, et al. Constitutive Equations for High Temperature Flow Stress Prediction of Al14Cu-7Ce alloy [J]. Mater Sci Eng, 2011, 528A(12): 4098.

    Article  Google Scholar 

  16. Yang Y, Yan Q Z, Ge C C. Hot Deformation Behavior of Modified CNS-II F/M Steel [J]. J Iron Steel Res Int, 2012, 19(1): 60.

    Article  Google Scholar 

  17. Li H Y, Liu Y, Lu X C, et al. Constitutive Modeling for Hot Deformation Behavior of ZA27 Alloy [J]. J Mater Sci, 2012, 47 (14): 5411.

    Google Scholar 

  18. Chai R X, Guo C, Yu L. Two Flowing Stress Models for Hot Deformation of XC45 Steel at High Temperature [J]. Mater Sci Eng, 2012, 534A: 101.

    Article  Google Scholar 

  19. Guo Biao, Ge Chang-chun, Xu Yi, et al Flow Stress Behavior and Prediction of Spray Forming FGH9 Superaloy at Elevated Temperature [J]. Chin J Nonferrous Met, 2012, 22(11): 3029 (in Chinese)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China

    Biao Guo (Doctor Candidate), Chang-chun Ge & Yi Xu

  2. Institute of Special Ceramics and Powder Metallurgy, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Chang-chun Ge

Authors
  1. Biao Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Chang-chun Ge
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yi Xu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Biao Guo.

Additional information

Foundation Item: Item Sponsored by National Natural Science Foundation of China (50974016)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Guo, B., Ge, Cc. & Xu, Y. Flow Behavior and Numerical Simulation of Spray-Formed FGH95 Superalloy Under Hot Compression. J. Iron Steel Res. Int. 20, 69–74 (2013). https://doi.org/10.1016/S1006-706X(13)60218-6

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1016/S1006-706X(13)60218-6

Key words

Search

Navigation