Method for homogenizing alloys susceptible to the formation of carbide stringers and alloys prepared thereby
Abstract
A novel fabrication procedure prevents or eliminates the reprecipitation of segregated metal carbides such as stringers in Ti-modified Hastelloy N and stainless steels to provide a novel alloy having carbides uniformly dispersed throughout the matrix. The fabrication procedure is applicable to other alloys prone to the formation of carbide stringers. The process comprises first annealing the alloy at a temperature above the single phase temperature for sufficient time to completely dissolve carbides and then annealing the single phase alloy for an additional time to prevent the formation of carbide stringers upon subsequent aging or thermomechanical treatment.
- Inventors:
-
- Oak Ridge, TN
- Kingston, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 863646
- Patent Number(s):
- 4221610
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; homogenizing; alloys; susceptible; formation; carbide; stringers; prepared; novel; fabrication; procedure; prevents; eliminates; reprecipitation; segregated; metal; carbides; ti-modified; hastelloy; stainless; steels; provide; alloy; uniformly; dispersed; throughout; matrix; applicable; prone; process; comprises; annealing; temperature; single; phase; sufficient; time; completely; dissolve; additional; prevent; subsequent; aging; thermomechanical; treatment; metal carbide; dispersed throughout; stainless steels; stainless steel; process comprises; sufficient time; single phase; uniformly dispersed; thermomechanical treatment; phase temperature; metal carbides; phase alloy; novel alloy; uniformly disperse; fabrication procedure; mechanical treatment; alloys prepared; /148/
Citation Formats
Braski, David N, and Leitnaker, James M. Method for homogenizing alloys susceptible to the formation of carbide stringers and alloys prepared thereby. United States: N. p., 1980.
Web.
Braski, David N, & Leitnaker, James M. Method for homogenizing alloys susceptible to the formation of carbide stringers and alloys prepared thereby. United States.
Braski, David N, and Leitnaker, James M. Tue .
"Method for homogenizing alloys susceptible to the formation of carbide stringers and alloys prepared thereby". United States. https://www.osti.gov/servlets/purl/863646.
@article{osti_863646,
title = {Method for homogenizing alloys susceptible to the formation of carbide stringers and alloys prepared thereby},
author = {Braski, David N and Leitnaker, James M},
abstractNote = {A novel fabrication procedure prevents or eliminates the reprecipitation of segregated metal carbides such as stringers in Ti-modified Hastelloy N and stainless steels to provide a novel alloy having carbides uniformly dispersed throughout the matrix. The fabrication procedure is applicable to other alloys prone to the formation of carbide stringers. The process comprises first annealing the alloy at a temperature above the single phase temperature for sufficient time to completely dissolve carbides and then annealing the single phase alloy for an additional time to prevent the formation of carbide stringers upon subsequent aging or thermomechanical treatment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1980},
month = {Tue Jan 01 00:00:00 EST 1980}
}
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