Method for heat treating iron-nickel-chromium alloy
Abstract
A method for heat treating an age-hardenable iron-nickel-chromium alloy to obtain a bimodal distribution of gamma prime phase within a network of dislocations, the alloy consisting essentially of about 25% to 45% nickel, 10% to 16% chromium, 1.5% to 3% of an element selected from the group consisting of molybdenum and niobium, about 2% titanium, about 3% aluminum, and the remainder substantially all iron. To obtain optimum results, the alloy is heated to a temperature of 1025.degree. C. to 1075.degree. C. for 2-5 minutes, cold-worked about 20% to 60%, aged at a temperature of about 775.degree. C. for 8 hours followed by an air-cool, and then heated to a temperature in the range of 650.degree. C. to 700.degree. C. for 2 hours followed by an air-cool.
- Inventors:
-
- Suffern, NY
- Rockville, MD
- Issue Date:
- Research Org.:
- Hanford Engineering Development Lab., Richland, WA (United States)
- OSTI Identifier:
- 864397
- Patent Number(s):
- 4359349
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- EY-76-C-14-2170
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; heat; treating; iron-nickel-chromium; alloy; age-hardenable; obtain; bimodal; distribution; gamma; prime; phase; network; dislocations; consisting; essentially; 25; 45; nickel; 10; 16; chromium; element; selected; molybdenum; niobium; titanium; aluminum; remainder; substantially; iron; optimum; results; heated; temperature; 1025; degree; 1075; 2-5; minutes; cold-worked; 20; 60; aged; 775; hours; followed; air-cool; range; 650; 700; gamma prime; iron-nickel-chromium alloy; consisting essentially; element selected; heat treating; alloy consisting; prime phase; chromium alloy; treating iron-nickel-chromium; age-hardenable iron-nickel-chromium; /148/
Citation Formats
Merrick, Howard F, and Korenko, Michael K. Method for heat treating iron-nickel-chromium alloy. United States: N. p., 1982.
Web.
Merrick, Howard F, & Korenko, Michael K. Method for heat treating iron-nickel-chromium alloy. United States.
Merrick, Howard F, and Korenko, Michael K. Fri .
"Method for heat treating iron-nickel-chromium alloy". United States. https://www.osti.gov/servlets/purl/864397.
@article{osti_864397,
title = {Method for heat treating iron-nickel-chromium alloy},
author = {Merrick, Howard F and Korenko, Michael K},
abstractNote = {A method for heat treating an age-hardenable iron-nickel-chromium alloy to obtain a bimodal distribution of gamma prime phase within a network of dislocations, the alloy consisting essentially of about 25% to 45% nickel, 10% to 16% chromium, 1.5% to 3% of an element selected from the group consisting of molybdenum and niobium, about 2% titanium, about 3% aluminum, and the remainder substantially all iron. To obtain optimum results, the alloy is heated to a temperature of 1025.degree. C. to 1075.degree. C. for 2-5 minutes, cold-worked about 20% to 60%, aged at a temperature of about 775.degree. C. for 8 hours followed by an air-cool, and then heated to a temperature in the range of 650.degree. C. to 700.degree. C. for 2 hours followed by an air-cool.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}