FIELD: metallurgy, processes.
SUBSTANCE: invention can be used for manufacturing of elements of fuel assembly of nuclear power plant - body or reactor lattice on boiling water, and also reactor lattice with water under the pressure, received from zirconium alloy, consisting not less then 95 wt % of zirconium. Plate work piece made of zirconium alloy is hardened in β-area with receiving of acicular structure receiving, rolling with route without intermediate softening at temperature from room till 200°C and reduction ratio 2-20% and annealed in α- or α+β- area at temperature 500-800°C during from 2 minutes till 10 hours. Cooling rate while tempering in β-area is no less than 1°C/s.
EFFECT: blanks allows at the same time well mechanical properties and low ability to increase dimensions under irradiation.
17 cl, 4 tbl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF RECEIVING OF FLAT BAR MADE OF ZIRCONIUM ALLOY, RECEIVED BY THIS METHOD FLAT BAR AND REACTOR LATTICE OF ATOMIC POWER STATION, MADE OF THIS BAR | 2004 |
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| ZIRCONIUM-BASE ALLOY | 1999 |
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| ZIRCONIUM-BASED ALLOY RESISTANT TO FLOWABILITY AND CORROSION | 1997 |
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