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Title: 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:
 [1];  [2]
  1. (Oak Ridge, TN)
  2. (Kingston, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863646
Patent Number(s):
4221610
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
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 = {1980},
month = {1}
}

Patent:

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