Reduced sintering distortion in tungsten--nickel--iron alloys by use of alloying additions

Technical Report · Tue Mar 08 04:00:00 EST 1977

OSTI ID:7108012

Northcutt, Jr, W G

The slumping and distortion behavior of tungsten-nickel-iron (W-Ni-Fe) alloys containing 90 percent tungsten was studied. Additions of ruthenium, copper, cobalt, and hafnium either singly or in combination were made to a W-7 Ni-3 Fe alloy, and the sintering behavior of the alloys produced was observed as a function of sintering temperature and to some extent, the sintering time. Sintering temperatures were determined by differential thermal analysis (DTA), and sintered alloy microstructures were examined. Distortion of the W-7 Ni-3 Fe alloy was reduced completely by ruthenium additions of 1 and 2 percent and was slightly reduced by copper, cobalt, and hafnium.

• Research Organization: Union Carbide Corp., Oak Ridge, TN (USA). Nuclear Div.
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7108012
• Report Number(s): Y/DA-7117
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOY SYSTEMS
ALLOYS
COBALT ADDITIONS
COBALT ALLOYS
COPPER ADDITIONS
COPPER ALLOYS
CRYSTAL STRUCTURE
DEFORMATION
FABRICATION
HAFNIUM ADDITIONS
HAFNIUM ALLOYS
IRON ALLOYS
MICROSTRUCTURE
NICKEL ALLOYS
PLATINUM METAL ALLOYS
RUTHENIUM ADDITIONS
RUTHENIUM ALLOYS
SINTERED MATERIALS
SINTERING
TERNARY ALLOY SYSTEMS
TUNGSTEN ALLOYS
TUNGSTEN BASE ALLOYS