Method for heat treating iron-nickel-chromium alloy

Patent · Mon Nov 15 23:00:00 EST 1982

OSTI ID:6772855

Korenko, M K; Merrick, H F

A method for heat treating an age-hardenable iron-nickelchromium 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/sup 0/ C to 1075/sup 0/ C for 2-5 minutes, cold-worked about 20% to 60%, aged at a temperatur of about 775/sup 0/ C for 8 hours followed by an air-cool, and then heated to a temperature in the range of 650/sup 0/ C to 700/sup 0/ C for 2 hours followed by an air-cool.

• Assignee: Dept. Of Energy
• Patent Number(s): US 4359349
• OSTI ID: 6772855
• Country of Publication: United States
• Language: English

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ALLOYS
BREEDER REACTORS
CHROMIUM ALLOYS
CLADDING
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DEPOSITION
EPITHERMAL REACTORS
FABRICATION
FAST REACTORS
FBR TYPE REACTORS
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MECHANICAL PROPERTIES
NICKEL ALLOYS
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SURFACE COATING
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