Iron-nickel superalloy of the type in 706

Details Iron-nickel superalloy of the type in 706 Iron-nickel superalloy of the type in 706

1996-09-05

1999-01-26

Phipps, Margery

Alloys or metallic compositions

Containing over 50 per cent metal but no base metal

Iron containing

4203861, 148442, 148419, 416223R, 416241R, C22C 3000

Patent

active

058634940

ABSTRACT:
An iron-nickel superalloy of the type IN 706 has an addition of 0.02 to 0.3 percent by weight of boron and/or 0.05 to 1.5 percent by weight of hafnium. By means of this addition, a virtual doubling of the ductility is achieved as compared with an addition-free iron-nickel superalloy of the type IN 706, while the hot strength is reduced only slightly. The alloy is particularly suitable as a material for rotors of large gas turbines. It has a sufficiently high hot strength. When locally acting temperature gradients arise unwanted stresses can occur to only a slight extent because of the high ductility of the alloy.

REFERENCES:
patent: 3705827 (1972-12-01), Muzyka et al.
patent: 3785876 (1974-01-01), Bailey
patent: 5415712 (1995-05-01), Thamboo
"The Microstructure of 706, a new Fe-Ni-Base Superalloy", Moll, et al., Metallurgical Transactions, vol. 2, Aug. 1971, pp. 2143-2151.
"Environmental Damage of a Cast Nickel Base Superalloy", Woodford, Metallurgical Transactions, vol. 12A, Feb. 1981, pp. 299-308.
"Heat Treatment of 706 Alloy for Optimum 1200.degree.F Stress-Rupture Properties", Moll, et al., Metallurgical Transactions, vol. 2, Aug. 1971, pp. 2153-2160.
CA 76: 62338 1971.

Affiliated with

Also associated with

Rating

Iron-nickel superalloy of the type in 706 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Iron-nickel superalloy of the type in 706, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Iron-nickel superalloy of the type in 706 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1447797