Method of fabricating a channel box or other part for a nuclear

Details Method of fabricating a channel box or other part for a nuclear Method of fabricating a channel box or other part for a nuclear

1992-07-15

1994-04-19

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148521, 148668, 148672, 156656, 156664, 2041291, C23F 102

Patent

active

053042611

ABSTRACT:
In a method of fabricating a channel box for use in a nuclear reactor, Zr-alloy sheet material is formed into a tubular channel box. The method includes solution heat treatment of the Zr-alloy sheet material including quenching from a temperature at which .beta.-phase is present. After the solution heat treatment, portions of the Zr-alloy sheet are thinned relative to other portions by a non-stressing thinning process, such as chemical etching in a bath. The corrosion resistance imparted by heat treatment is retained, and the heat treatment itself is easily performed on material of uniform thickness.

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patent: 4678521 (1987-07-01), Yoshida et al.
patent: 4749543 (1988-06-01), Crowther et al.
patent: 4749544 (1988-06-01), Crowther et al.

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