Published February 1990 | Version v1
Journal article Metadata-only

A comparison of the solidification behavior of Incoloy 909 and Inconel 718

Creators

  • 1. Process Metallurgy Div., Sandia National Lab., Albuquerque, NM (USA)
  • 2. Electron Optics Div., Sandia National Lab., Albuquerque, NM (USA)
  • 3. Physical Metallurgy Div., Sandia National Lab., Albuquerque, NM (USA)
  • 4. Oak Ridge National Lab., TN (USA)

Description

The solidification behavior of two commercial aerospace superalloys, Incoloy 909 and Inconel 718, has been examined. Differential thermal analysis (DTA) revealed that Incoloy 909 terminates solidification with the formation of a single minor constituent at ∼ 1198 degrees C. Inconel 718 terminates solidification with the formation of two minor constituents at ∼ 1257 degrees C and ∼ 1185 degrees C, respectively. Metallography confirmed that a single minor constituent was present in Incoloy 909 while two minor constituents were present in Inconel 718. Samples were also examined by electron probe microanalysis to reveal the patterns of elemental segregation

Additional details

Publishing Information

Journal Title
Metallurgical Transactions, A
Journal Volume
21
Journal Issue
2
Series
Metall. Trans., A.
Journal Page Range
479-488
ISSN
0360-2133
CODEN
MTTAB

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21078265
Subject category
S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALLOY-NI53CR19FE19NB5MO3; AUSTENITIC STEELS; CHEMICAL COMPOSITION; DIFFERENTIAL THERMAL ANALYSIS; ELECTRON PROBES; INCOLOY ALLOYS; LAVES PHASES; METALLOGRAPHY; NIOBIUM ALLOYS; SOLIDIFICATION; TRANSMISSION ELECTRON MICROSCO
Descriptors DEC
ALLOYS; ALUMINIUM ADDITIONS; CARBON ADDITIONS; CHROMIUM ALLOYS; CORROSION RESISTANT ALLOYS; ELECTRON MICROSCOPY; HEAT RESISTING ALLOYS; INCONEL ALLOYS; IRON ALLOYS; IRON BASE ALLOYS; MICROSCOPY; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; PROBES; STEELS; THERMAL ANALYSIS; TITANIUM ADDITIONS