THE TOPOGRAPHY OF THE FRACTURE SURFACE OF SOME URANIUM ALLOYS

Authors
  1. Copps, T.P.
  2. Erickson, W.H.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Describes the fracture surfaces found during a mechanical properties investigation of two uranium alloys: U-2Mo and U-1Mo-1Nb-1Zr. Cellulose acetate replicas of the fracture surfaces of tensile, bend and Charpy specimens were shadowed by chromium deposition at 45 degrees followed by carbon deposition normal to the surface. Examination revealed two predominant modes of fracture: dimpled rupture or quasi-cleavage rupture. Results suggest that the superior high hardness mechanical properties of the complex alloy at room temperature is related to a lower 'ductile-brittle' fracture mode transition temperature.
Report Number
TN-1885/70 —
Date of publication
15 Aug 1970
Number of Pages
34
DSTKIM No
71-01329
CANDIS No
8061
Format(s):
Hardcopy;Originator's fiche received by DSIS

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