Metal treatment – Compositions – Heat treating
Patent
1985-05-28
1986-12-02
Dean, R.
Metal treatment
Compositions
Heat treating
148439, 148440, C22F 104
Patent
active
046262946
ABSTRACT:
Aluminum armor plate containing relatively high amounts of magnesium, 6-10%, along with about 0.1-1% manganese and up to 0.23% chromium is made by cold rolling aluminum alloy rolling stock to a cold reduction of at least 10% with or without prior hot rolling. Susceptibility to stress conversion cracking is overcome by heating the alloy to an elevated temperature of typically 600.degree. or 700.degree. F. or more followed by cooling the alloy at a controlled cooling rate of at least 10.degree. F. per minute. The heating and the cooling precede the cold rolling operation and may be associated with hot rolling if such is employed.
REFERENCES:
patent: 1856615 (1932-05-01), Archer et al.
patent: 1910656 (1933-05-01), Tullis et al.
patent: 1932837 (1933-10-01), Wood
patent: 1932846 (1933-10-01), Dean et al.
patent: 1932856 (1933-10-01), Wood
patent: 2096010 (1937-10-01), Sicha
patent: 3232796 (1966-02-01), Anderson
patent: 3346372 (1967-10-01), Jagaciak
patent: 3502448 (1970-03-01), Anderson et al.
patent: 3556872 (1971-01-01), Jagaciak
patent: 3560269 (1971-02-01), Anderson et al.
patent: 3649227 (1972-03-01), Fetzer et al.
patent: 3708352 (1973-01-01), Brown et al.
patent: 4284437 (1981-08-01), Baba et al.
patent: 4469537 (1984-09-01), Ashton et al.
Alloy Digest, Sep. 1958, "Aluminum 5456".
Military Specification, "Armor Plate, Aluminum Alloy, Weldable 5083 and 5456", MIL-A-46027F(MR), Jun. 10, 1976 and MIL-A-46027F(MR), Amendment 1, Oct. 19, 1981.
Aluminum Company of America
Dean R.
Lippert Carl R.
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