PROPERTIES OF ARC-MELTED CHROMIUM-BASE ALLOYS

Technical Report · Mon Jul 14 00:00:00 EDT 1958

DOI:https://doi.org/10.2172/4794114· OSTI ID:4794114

Maykuth, D. J.; Roberts, Jr., J. W.; Jaffee, R. I.

screened for hot workability, oxidation resistance, and hot strength using small arc-melted ingots. The alloying elements investigated included Fe, Mn, Mo, Nb, Re, Ru, Ta, Ti, W, V, Zr, and Y in amounts up to 20 wt%. Of the fabricable alloys tested, the best combinations of oxidation resistance and strength, in the range of 2000 to 2300 deg F, were found in binary alloys containing 5 wt % molybdenum, 10 wt% tungsten, and 2 wt% niobium. While yttrium additions do not contribute to the hot strength of chromium, the effectiveness of yttrium in improving the oxidation resistance of chromium is outstanding. About 1 wt% yttrium appears optimum for this purpose. Experiments with the preparation of large chromium-base alloy ingots showed that cold-mold arc melting was not suitable for preparing ingots containing over about 1 wt% of alloy addition. However, the feasibility of preparing sound, higher alloycontent ingots by induction melting and casting was demonstrated. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, OH (United States)
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-16-030779
• OSTI ID: 4794114
• Report Number(s): BMI-1277
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: United States
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
CASTING
CHROMIUM
CHROMIUM ALLOYS
COLD WORKING
DENSITY
EFFICIENCY
ELECTRIC ARCS
FABRICATION
HIGH TEMPERATURE
HOT WORKING
INDUCTION
IRON ALLOYS
MANGANESE ALLOYS
MATERIALS TESTING
MELTING
MOLYBDENUM ALLOYS
NIOBIUM ALLOYS
OXIDATION
PHASE DIAGRAMS
RHENIUM ALLOYS
RODS
RUTHENIUM ALLOYS
STABILITY
TANTALUM ALLOYS
TENSILE PROPERTIES
TITANIUM ALLOYS
TUNGSTEN ALLOYS
VANADIUM ALLOYS
YTTRIUM
YTTRIUM ALLOYS
ZIRCONIUM ALLOYS