Study of chromium reduction in nickel-base superalloys through element substitution and rapid solidification. [0. 5% Si and 1. 0%Zr additions, Cr reduced to 6 wt%]

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5443533

Powers, W O; Ohls, M A; Fraser, H L ^[1]

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1. Univ. of Illinois, Urbana (USA)

Studies have been made to determine the microstructural effects of using Si or Zr as simple additions and as partial substitutes for Cr in Inconel 713LC. Initially, 0.5wt.% and 1.0wt.% Si or Zr were added to 713LC to determine the effect of these elements on the resulting microstructures in both conventionally cast material and melt spun ribbon. Secondly, the Cr was reduced by 50% (to 6wt.%) and the same studies were repeated. Microstructural analysis was performed using light optical and analytical electron microscopy. In both sets of alloys the Si and Zr additions caused an increase in the amount of eutectic nodules as well as the formation of an additional phase. Presently, consolidation studies are being done on ribbon which has been reduced to particulate. Similar studies are being conducted on Waspaloy.

• OSTI ID: 5443533
• Report Number(s): CONF-840909-; CODEN: TMPSA
• Journal Information: TMS (The Metallurgical Society) Paper Selection; (USA), Vol. 56; Conference: TMS-AIME fall meeting, Detroit, MI (USA), 16-20 Sep 1984; ISSN 0197-1689
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM
METALLURGICAL EFFECTS
INCONEL 713LC
MICROSTRUCTURE
SILICON
ZIRCONIUM
ELECTRON MICROSCOPY
MATERIAL SUBSTITUTION
OPTICAL MICROSCOPY
PHASE STUDIES
QUANTITY RATIO
SILICON ADDITIONS
WASPALOY
ZIRCONIUM ADDITIONS
ALLOY-NI58CR20CO14MO4TI3
ALLOY-NI75CR12AL6MO5
ALLOYS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CHROMIUM ALLOYS
COBALT ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELEMENTS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL ALLOYS
IRON ALLOYS
MATERIALS
METALS
MICROSCOPY
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM ALLOYS
SEMIMETALS
SILICON ALLOYS
T
TRANSITION ELEMENTS
ZIRCONIUM ALLOYS
360102* - Metals & Alloys- Structure & Phase Studies