Fracture toughness tests over the interval 298 to 4 K and fatigue crack growth rate tests at 298, 111, and 76 K are reported on selected iron-nickel (Fe-Ni) alloys which are commercially available for potential use in storage or transportation of liquefied natural gas (LNG). These alloys include Fe-6Ni and Fe-5Ni in newly developed three-step heat treatments and Fe9Ni in the quenched and tempered condition. Linear elastic fracture mechanics parameters (K sub q, K sub ic) and J-integral (J sub ic) test data are presented for 1.25-in.-thick compact specimens. Discussion includes comparisons of fatigue crack growth rate and fracture data between alloys.

  • Supplemental Notes:
    • This article is an Authorized Reprint from Special Technical Publication 579.
  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Tobler, R L
    • Mikesell, R P
    • Durcholz, R L
    • Reed, R P
  • Publication Date: 1975

Media Info

  • Features: References;
  • Pagination: 27 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00182500
  • Record Type: Publication
  • Source Agency: American Society for Testing and Materials
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM