Skip to main content
SpringerLink
Log in

Flow stress equations of Ti-6Al-4V titanium alloy sheet at elevated temperatures

  • Published:
International Journal of Precision Engineering and Manufacturing Aims and scope Submit manuscript

Abstract

In this study, to achieve constitutive equations of Ti-6Al-4V alloy sheet, uni-axial tensile tests of Ti-6Al-4V alloy sheet with thickness of 1.0mm were performed at elevated temperature of 400°C ∼ 700°C. Equations of stress-strain curves are established for Ti-6Al-4V alloy sheet at elevated temperatures describing both work-hardening and softening stage of Ti-6Al-4V alloy sheet. Least square fitting method is used to determine material parameters. The parameters of fitting curves are utilized to determine them as a function of temperature using polynomial models. New mathematical models are used to calculate and predict the stress-strain curves at elevated temperatures. The calculated flow stress curves are in good agreement with experimental data and shown better than that of previous equation.

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. Donachie, M. J., “Titanium: A Technical Guide,” ASM International, 2000.

  2. Vafaeesefat, A. and Khanahmadlu, M., “Comparison of the numerical and experimental results of the sheet metal flange forming based on shell-elements types,” Int. J. Precis. Eng. Manuf., Vol. 12, No. 5, pp. 857–863, 2011.

    Article  Google Scholar 

  3. Seong, D. Y., Jung, C. G., Yang, D. Y. and Chung, W. J., “Efficient prediction of local failures for metallic sandwich plates with pyramidal truss cores during the bending processes,” Int. J. Precis. Eng. Manuf., Vol. 12, No. 3, pp. 491–503, 2011.

    Article  Google Scholar 

  4. Lin, Y. C., Chen, M. S. and Zhong, J., “Microstructural evolution in 42CrMo steel during compression at elevated temperatures,” Mater. Lett., Vol. 62, No. 14, pp. 2132–2135, 2008.

    Article  Google Scholar 

  5. Takuda, H., Morishita, T. and Kinoshita, T., “Modelling of formula for flow stress of a magnesium alloy AZ31 sheet at elevated temperatures,” J. Mater. Processing Technol., Vol. 164–165, pp. 1258–1262, 2005.

    Article  Google Scholar 

  6. Yang, Y. Q., Li, B. C. and Zhang, Z. M., “Flow stress of wrought magnesium alloys during hot compression deformation at medium and high temperatures,” Mater. Sci. Eng. A, Vol. 499, No. 1–2, pp. 238–241, 2009.

    MathSciNet  Google Scholar 

  7. Zheng, Q. G., Ying, T. and Jie, Z., “Dynamic softening behaviour of AZ80 magnesium alloy during upsetting at different temperatures and strain rates,” Proc. Inst. Mech. Eng. Part B: J. Eng. Manuf., Vol. 224, No. 11, pp. 1707–1716, 2010.

    Article  Google Scholar 

  8. Nguyen, D. T., Banh, T. L., Jung, D. W., Yang, S. H. and Kim, Y. S., “A Modified Johnson-Cook Model to Predict Stress-Strain Curves of Boron Steel Sheets at Elevated and Cooling Temperatures,” High Temp. Mat. Proc., Vol. 31, No. 1, pp. 37–46, 2012.

    Google Scholar 

  9. Swift, H. W., “Plastic instability under plane stress,” J. Mech. Phys. Solids, Vol. 1, No. 1, pp. 1–18, 1952.

    Article  Google Scholar 

  10. Voce, E., “The relationship between stress and strain for homogeneous deformation,” J. Inst. Met., Vol. 74, pp. 537–562, 1978.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Mechanical Engineering, Hanoi University of Science and Technology, 1A-Dai Co Viet Street, Hai Ba Trung District, Hanoi City, Vietnam, 10000

    Duc-Toan Nguyen

  2. Department of Mechanical Engineering, Kyungpook National University, 1370 Sangyeok-dong, Buk-gu, Daegu, Republic of Korea, 702-701

    Young-Suk Kim

  3. Department of Mechanical Engineering, Jeju National University, 1, Ara 1-dong, Jeju-si, Jeju, Republic of Korea, 690-756

    Dong-Won Jung

Authors
  1. Duc-Toan Nguyen
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Young-Suk Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Dong-Won Jung
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Duc-Toan Nguyen.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Nguyen, DT., Kim, YS. & Jung, DW. Flow stress equations of Ti-6Al-4V titanium alloy sheet at elevated temperatures. Int. J. Precis. Eng. Manuf. 13, 747–751 (2012). https://doi.org/10.1007/s12541-012-0097-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12541-012-0097-0

Keywords

Search

Navigation