Metamorphic processing of alloys and products thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 2001
Grant Date -
N/A
app pub date -
Aug 21, 1997
filing date -
Jan 5, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In accordance with one aspect of the present invention is the metamorphic processing of a beryllium-copper alloy. The alloy is (i) thermodynamically treated for greater than about 10 hours at a temperature generally within a range of 900.degree. to 1500.degree. F., (ii) warm worked at greater than about 30% strain at a strain rate .epsilon. greater than or equal to about (2.210.times.10.sup.7)/exp[(2.873.times.10.sup.4)/(T+459.4.degree.)], where T is in .degree. F., at the temperature, (iii) annealed at a temperature between 1375.degree. and 1500.degree. F. for about 15 minutes to about 3 hours, (iv) water quenched, and (v) thermal hardened at a temperature generally within a range of about 480.degree. and 660.degree. F. Grain size is reduced with concomitant improvements in ultimate strength, toughness, total elongation, % reduction in area and ultrasonic inspectability.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully