Rapid high temperature aging of al-zn-mg-cu alloys

C - Chemistry – Metallurgy – 21 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

75/83, 148/55.6

C21D 1/44 (2006.01) C22C 21/10 (2006.01) C22F 1/053 (2006.01)

Patent

CA 1047901

Abstract of the Disclosure A method of thermally treating an article composed of an alloy consisting essentially of aluminum, 4 to 8% zinc, 1.5 to 3.5% magnesium, 1 to 2.5% copper, and at least one element selected from the group consisting of 0.05 to 0.3% chromium, 0.1 to 0.5% manganese, and 0.05 to 0.3% zirconium, which method includes solution heat treating the article and subsequently sub- jecting the article to a time and temperature effective for increas- ing the resistance to corrosion of the alloy over its resistance in the T6 condition, the time and temperature being from 10 seconds to 10 minutes and from 350 to 520°F, or else 435 to 520°F, respec-tively. An alloy consisting essentially of aluminum, 4 to 8% zinc, 1.5 to 3.5% magnesium, 1 to 2.5% copper, and at least one element selected from the group consisting of 0.05 to 0.3% chromium, 0.1 to 0.5% manganese and 0.05 to 0.3% zirconium, having a corrosion resistance increased over that of its T6 condition, with a solution potential lying in the range minus 825 to minus 935 millivolts, a yield strength lying in the range 46 to 72 ksi, a dislocation den- sity above that exhibited by aluminum alloy 7075 in the T73 condi- tion, denuded grain boundary regions, and grain boundary precipitate.

204543

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Rapid high temperature aging of al-zn-mg-cu alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rapid high temperature aging of al-zn-mg-cu alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid high temperature aging of al-zn-mg-cu alloys will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1041196

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.