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Journal of Materials Science

, Volume 30, Issue 19, pp 4986–4993 | Cite as

Fracture toughness of sub-zero-chilled cast iron

  • K. H. W. Seah
  • J. Hemanth
  • S. C. Sharma
Article

Abstract

A series of fracture toughness experiments were carried out involving sub-zero-chilled (using liquid nitrogen) cast iron containing 1.5% Cu, and chromium contents ranging from 0.0%–0.2%. By using copper chills of different thicknesses, the effect on fracture toughness of varying the chill rate was also examined. The fracture toughness tests were carried out using three-point bend specimens, each with a chevron notch, as per ASTM E 399-1974 standards. It was found that fracture toughness is highly dependent on the location on the casting from where the test specimens are taken and also on the chromium content of the material. Chill thickness, however, does not significantly affect the fracture toughness of the material. There was found to be an approximately linear relationship between fracture toughness and pearlite content, in which fracture toughness increases as pearlite content decreases and vice versa.

Keywords

Fracture Toughness Test Specimen Cast Iron Pearlite Chromium Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    “Metals Handbook”, Vol. 1, “Properties and selection: irons, steels and high-performance alloys” (ASM International, 10th Edn 1990).Google Scholar
  2. 2.
    “AFS Cast Metals Handbook”, 4th Edn (AFS, Des Plaines, IL 1975) p. 87.Google Scholar
  3. 3.
    M. O. Speidel, S. Wolfensberger andP. J. Uggowitzer,Ind. Found. J. 35 (1984) 15.Google Scholar

Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • K. H. W. Seah
    • 1
  • J. Hemanth
    • 2
  • S. C. Sharma
    • 2
  1. 1.Department of Mechanical EngineeringNational University of SingaporeSingapore
  2. 2.Department of Mechanical EngineeringR. V. College of EngineeringBangalore 560059, KarnatakaIndia

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