Metal treatment – Stock – Ferrous
Patent
1997-01-17
1998-10-06
Ip, Sikyin
Metal treatment
Stock
Ferrous
148326, 148327, 148427, 148428, 148592, 148593, 148610, 148611, 148676, C22C 3818
Patent
active
058171932
ABSTRACT:
In the fabrication of components from a face centered cubic alloy, wherein the alloy is cold worked and annealed, the cold working is carried out in a number of separate steps, each step being followed by an annealing step. The resultant product has a grain size not exceeding 30 microns, a "special" grain boundary fraction not less than 60%, and major crystallographic texture intensities all being less than twice that of random values. The product has a greatly enhanced resistance to intergranular degradation and stress corrosion cracking, and possesses highly isotropic bulk properties.
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