SOME OBSERVATIONS ON THE COLD-DRAWING AND ANNEALING BEHAVIOUR OF NICKEL CONTAINING A DISPERSED PHASE OF THORIA

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Powder Met.

DOI:https://doi.org/10.1179/POM.1962.5.10.003· OSTI ID:4776638

Tracey, V A; Worn, D K

Consideration is given to the effects of cold drawing and subsequent heat treatment on the mechanical properties of extruded Ni--2.5 vol.-% thoria rod, prepared from mechanically mixed nickel and thoria powders. It is shown that the extruded alloy may be reduced 780% in area using no intermediate annealing treatments, with significant beneficial effect on the room-temperature tensile strength and on the stress-rupture properties at 815 deg C. The cold- drawn alloy has marked resistance to annealing at temperatures in excess of 1000 deg C. Comparative data are given for pure Ni. The effects of cold drawing and subsequent heat treatment on the structure of the alloy are then discussed with reference to changes in the dispersed phase and in the matrix revealed by electron microscopy and by x-ray diffraction studies. (auth)

• Research Organization: International Nickel Co. (Mond) Ltd., Birmingham, Eng.
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-003457
• OSTI ID: 4776638
• Journal Information: Powder Met., Journal Name: Powder Met. Vol. Vol: No. 10
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANNEALING
COLD WORKING
CONFIGURATION
DIFFRACTION
DISPERSIONS
DRAWING
ELECTRON MICROSCOPY
EXTRUSION
FAILURES
HEAT TREATMENTS
HIGH TEMPERATURE
IMPURITIES
LATTICES
MECHANICAL PROPERTIES
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
NICKEL
NICKEL ALLOYS
PHASE DIAGRAMS
POWDERS
RODS
STABILITY
STRESSES
TEMPERATURE
TENSILE PROPERTIES
THICKNESS
THORIUM OXIDES
WIRES
X RADIATION