Skip to main content
SpringerLink
Log in

Comparative fracture toughness of an ultrafine grained Fe-Ni alloy at liquid helium temperature

  • Published:
Metallurgical Transactions A Aims and scope Submit manuscript

Abstract

The fracture behavior of an Fe-12 Ni-0.25 Ti alloy, grain refined through thermal cycling was studied down to liquid helium temperature using a simple method of cryogenic fracture toughness testing. Comparison tests were also made with two other common cryogenic alloys. Ultrafine grained Fe-12 Ni-0.25 Ti alloy, which is 100 pct ferritic, behaved in a ductile manner similar to 304 austenitic steel. It was shown that the ductile-brittle transition temperature of the ferritic steel specimen can be suppressed below liquid helium temperature by grain refinement even in the presence of a sharp crack. Yield strength of 149 ksi with fracture toughness of 307 ksi√in. at liquid nitrogen temperature, and yield strength of 195 ksi with fracture toughness of 232 ksi√in. at liquid helium temperature were obtained.

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. S. Jin, J. W. Morris, Jr., and V. F. Zackay:Met. Tram. A, 1975, vol. 6A, p. 141.

    Article  Google Scholar 

  2. 1974Book of ASTM Standard, Part 10, E 399-74, p. 432.

  3. S. Jin, W. A. Horwood, J. W. Morris, Jr., and V. F. Zackay:Advan. Cryog. Eng., 1974, vol. 19, p. 373.

    Google Scholar 

  4. E. B. Kula and T. S. DeSisto:Amer. Soc. Testing Mater., Spec. Tech. Publ, vol. 387, p. 1, 1965.

    Google Scholar 

  5. Z. S. Basinski:Proc. Roy. Soc. London, 1957, vol. 240, p. 229.

    Article  ADS  Google Scholar 

  6. S. Jin, J. W. Morris, Jr., and V. F. Zackay:Advan. in Cryog. Eng., 1974, vol. 19, p. 379.

    CAS  Google Scholar 

  7. J. R. Rice, P. C. Paris, and J. G. Merkle:Amer. Soc. Testing Mater., Spec. Tech. Publ., vol. 536, p. 231, 1972.

    Google Scholar 

  8. J. A. Begley and J. D. Landes:Amer. Soc. Testing Mater., Spec. Tech. Publ., vol. 514, p. 1, 1972.

    Google Scholar 

  9. P. C. Riccardella and J. L. Sweldow: WCAP-8224, Oct. 1973.

  10. F. J. Witt and T. R. Mager: ORNL-TM-3894, Oct. 1972.

  11. N. J. Petch:Phil. Mag., 1958, vol. 3, p. 1089.

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering, University of California, 94720, Berkeley, Ca.

    Sungho Jin (Assistant Research Engineer), S. K. Hwang (Graduate Student Research Assistant) & J. W. Morris (Associate Professor)

Authors
  1. Sungho Jin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. K. Hwang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J. W. Morris
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jin, S., Hwang, S.K. & Morris, J.W. Comparative fracture toughness of an ultrafine grained Fe-Ni alloy at liquid helium temperature. Metall Trans A 6, 1569 (1975). https://doi.org/10.1007/BF02641969

Download citation

  • Received:

  • DOI: https://doi.org/10.1007/BF02641969

Keywords

Search

Navigation