Metal treatment – Stock – Age or precipitation hardened or strengthened
Patent
1983-10-03
1985-04-23
Skiff, Peter K.
Metal treatment
Stock
Age or precipitation hardened or strengthened
148158, 420419, C22C 1400, C22F 118
Patent
active
045128260
ABSTRACT:
Small amounts of rare earth elements are added to an .alpha. or near-.alpha. alloy of titanium and IIIA, IVA metals to provide a rare earth/IIIA, IVA metal precipitate during an age hardening heat treatment after rapid solidification of the alloy. Age hardening of the rapidly solidified alloy of .alpha. or near .alpha.-titanium creates a fine, uniform, equidistant, high density, spherical 50-100 Angstrom precipitate of the resulting rare earth/IIIA, IVA metal compound to produce a precipitate-hardened allow with twice the strength of the alloy without rare earth additives. The precipitate hardening which predominates the other hardening processes occurs during the heat treating step after rapid solidification, with the quenching associated with the rapid solidification producing solid solution hardening. In a preferred embodiment, avoidance of segregation is accomplished by limiting the amount of rare earth element concentration below the maximum extended solubility limit, thereby to produce a stable precipitate for providing high strength at high temperatures, with a preferred range of rare earth being between 0.1 at .% and 2% at .%.
REFERENCES:
patent: 3070468 (1962-12-01), Grant
patent: 3622406 (1971-11-01), Vordahl
patent: 4149884 (1979-04-01), Maringer et al.
Metal Abstracts, "Exploratory Study of Laser Processing of Titanium Alloys", No. 12-1648, vol. 15, Oct. 1982.
Northeastern University
Skiff Peter K.
LandOfFree
Precipitate hardened titanium alloy composition and method of ma does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Precipitate hardened titanium alloy composition and method of ma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precipitate hardened titanium alloy composition and method of ma will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-35707