Skip to main content
SpringerLink
Log in

Tensile and fatigue properties of explosively and conventionally formed 2014 aluminum alloy

  • Mechanical Behavior
  • Published:
Metallurgical Transactions Aims and scope Submit manuscript

Abstract

The relative influence of explosive and conventional forming on the terminal characteristics of a commercial precipitation-hardenable Al-4.5 pct Cu alloy (AA 2014) was investigated. This included the evaluation of microstructure, hardness, tensile properties, fatigue life, and response to heat treatment. Domes of 2014−0 and Alclad 2014−T6 were free-formed explosively with standoff into a 12-in. diam open die. Their isostatically formed counterparts were produced by rubber pressing. Specimens were sectioned from the domes, so that the material itself rather than components was characterized. The terminal behavior of both tempers was determined in the as-formed condition, and of T6 after forming in the 0 temper prior to the full heat treatment. It was found that the aforementioned properties do not depend significantly on the rate of forming. A simple method is presented for adjusting the forming strains mathematically so that it is not necessary to produce precisely equivalent prestrains experimentally before an adequate comparison of tensile properties can be made.

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. R. N. Orava and H. E. Otto:J. Metals, February 1970, vol. 22, pp. 17–31.

    CAS  Google Scholar 

  2. G. S. Whiting and R. N. Orava: Phase Report, Center for High Energy Forming, University of Denver, October 1969.

  3. R. N. Orava and H. E. Otto: Proc.2nd Int. Conf of the Center for High Energy Forming, University of Denver, 1969, pp. 1.2.1–33.

  4. R. Mikesell, source cited in Ref. 3, Proc.2nd Int. Conf. of the Center for High Energy Forming, University of Denver, 1969, pp. 1.3.1–7.

  5. G. S. Whiting and R. N. Orava, source cited in Ref. 3, Proc.2nd Int. Conf. of the Center for High Energy Forming, University of Denver, 1969. pp. 2.4.1–20.

  6. A. A. Ezra:J. Mater., 1969, vol. 4, pp. 338–55.

    Google Scholar 

  7. S. Kulkarni and M. Kaplan, University of Denver, private communication, 1970.

  8. J. D. Lubahn and R. F. Felgar:Plasticity and Creep of Metals, p. 286, John Wiley and Sons, Inc, N. Y., 1961.

    Google Scholar 

  9. P. D'Aguanno and G. Pfanner: Theoretical and Experimental Evaluation of High Energy Rate Forming of Hemispherical Shapes in Metals, Republic Aviation Corp., Rept. No. RAC 1893, NASA Phase II Rept., 1963; N66-23706.

  10. M. G. Natrella:Experimental Statistics, NBS Handbook 91, National Bureau of Standards, Washington, D. C., 1966.

  11. I. K. Sheffield and K. R. Agricola: Development of Explosive Forming Techniques for Saturn V Components, Martin Co., Rept., No. CR-66-6, January 1966; N66-18408.

  12. J. T. Snyder,et al.: Explosive Forming of 2219 Aluminum, Martin Co., Rept. No. CR-65-41, 1965.

  13. C. P. Bennett:Mater. Res. Std., 1967, vol. 7, pp. 305–9.

    Google Scholar 

  14. R. N. Orava and H. E. Otto:Mater. Res. Std., 1968, vol. 8, no. 4, p. 45.

    Google Scholar 

  15. C. P. Bennett: University of Winnipeg, Manitoba, Canada, private communication, 1969.

  16. B. Eftestol,et al.: High Energy Rate Working of Metals, Proc. NATO Advanced Study Institute, Central Institute for Industrial Research, Osio, Norway, September 1964, pp. 296–311.

Download references

Author information

Authors and Affiliations

  1. Metallurgy and Materials Science Division, Denver Research Institute, University of Denver, Denver, Colo.

    R. N. Orava & H. E. Otto

  2. Division of Applied Science, Southern Colorado State College, Pueblo, Colo.

    R. Mikesell

Authors
  1. R. N. Orava
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. E. Otto
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. R. Mikesell
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

R. MIKESELL, formerly Research Metallurgist, Metallurgy and Materials Science Division, Denver Research Institute, University of Denver.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Orava, R.N., Otto, H.E. & Mikesell, R. Tensile and fatigue properties of explosively and conventionally formed 2014 aluminum alloy. Metall Trans 2, 1675–1682 (1971). https://doi.org/10.1007/BF02913893

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02913893

Keywords

Search

Navigation