Patents Represented by Law Firm Alex. E. MacRae & Co.
  • High strength Sn-Mo-Nb-Zr alloy tubes and method of making same
    Patent number: 4065328
    Abstract: Tubes for use in nuclear reactors fabricated from a quaternary alloy comprising 2.5-4.0 wt% Sn, 0.5-1.5 wt% Mo, 0.5-1.5 wt% Nb, balance essentially Zr. The tubes are fabricated by a process of hot extrusion, heat treatment, cold working to size and age hardening, so as to produce a microstructure comprising elongated .alpha. grains with an acicular transformed .beta. grain boundary phase.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: December 27, 1977
    Assignee: Atomic Energy of Canada Limited
    Inventor: Brian A. Cheadle