Journal of Materials Science

, Volume 20, Issue 4, pp 1248–1256 | Cite as

The fracture behaviour of two Co-Mo-Cr-Si wear resistant alloys (“Tribaloys”)

  • Alison Halstead
  • Rees D. Rawlings
Papers
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Abstract

The room temperature modulus of rupture (MOR) and the plane strain fracture toughness (KIC) of two Co-Mo-Cr-Si wear resistant alloys in various microstructure conditions have been determined. The modulus of rupture varied from 304 to 927 MN m−2 and as such was more structure sensitive thanKIC, which was in the range 15 to 26 MN m−3/2 for all conditions of the alloys. The best combination of room-temperature properties was associated with an f c c solid solution whereas h c p solid solution with a Widmanstätten precipitate produced the poorest properties. The industrial significance of these results are discussed.

Keywords

Polymer Microstructure Solid Solution Fracture Toughness Plane Strain 
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Copyright information

© Chapman and Hall Ltd. 1985

Authors and Affiliations

  • Alison Halstead
    • 1
  • Rees D. Rawlings
    • 1
  1. 1.Department of Metallurgy and Materials ScienceImperial CollegeLondonUK

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