Nickel/iron casting alloy exhibiting high strength at elevated temperatures and high microstructural stability

Patent · Tue Aug 07 04:00:00 EDT 1984

OSTI ID:6401275

Brandis, H; Reismann, J; Spyra, W

The invention relates to a nickel/iron casting alloy, containing no cobalt, exhibiting high strength at elevated temperatures accompanied by insensitivity to thermal fatigue, and possessing microstructural constituents which are thermodynamically highly stable. The alloy exhibits high hardness at elevated temperatures, outstanding resistance to oxidation, corrosion and wear, as well as good welding properties. The alloy is particularly suitable as a material for nuclear reactor components, and is composed of 1.1 to 1.6% of carbon 0.5 to 1.5% of silicon 0.01 to 0.2% of manganese 22 to 26% of chromium 12.5 to 14.5% of molybdenum 0.2 to 0.8% of niobium (columbium) 35 to 40% of nickel less than 0.01% of boron less than 0.002% of tantalum and 18 to 26% of iron, to make up 100%.

• Assignee: EDB-85-013513
• Patent Number(s): US 4464335
• OSTI ID: 6401275
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
BORON COMPOUNDS
CARBON COMPOUNDS
CHEMICAL COMPOSITION
CHROMIUM ALLOYS
CORROSION RESISTANCE
CRYSTAL STRUCTURE
FABRICATION
FATIGUE
HARDNESS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MANGANESE COMPOUNDS
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM COMPOUNDS
POWER REACTORS
REACTOR COMPONENTS
REACTORS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
STABILITY
TANTALUM COMPOUNDS
THERMAL FATIGUE
TRANSITION ELEMENT COMPOUNDS
WEAR RESISTANCE
WELDING