Shock-wave consolidation of rapidly solidified superalloy powders. [Mar-M 200 and IN-100]

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

OSTI ID:5451851

Meyers, M A; Wang, S L; Pak, H R ^[1]

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1. New Mexico Institute of Mining and Technology, Socorro (USA)

Mar-M 300 (prepared by the Pratt and Whitney RSR process) and IN-100 (prepared by Pratt and Whitney RSR and by the Nuclear Metals Inc. REP processes) powders were subjected to a variety of shock-wave pulses in both the axisymmetric (using a central mandrel) and plane wave geometries in an attempt to optimize the consolidation. The detonation velocity, tube thickness, central mandrel material, and mass of explosive were varied and the fraction consolidated was determined as a function of these parameters. For the plane-wave geometry, the Momma Bear system developed by R.A. Graham at Sandia National Laboratories was used. Computer simulation allows the determination of the stress history in the powder for Graham's calibrated plane-wave systems. The systems used, consolidation obtained, and microstructures and substructures developed are described.

• OSTI ID: 5451851
• Report Number(s): CONF-840909--
• Conference Information: Journal Name: TMS (The Metallurgical Society) Paper Selection; (USA) Journal Volume: 56
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
COMPACTING
COMPUTERIZED SIMULATION
CRYSTAL STRUCTURE
EXPLOSIONS
GEOMETRY
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HISTORICAL ASPECTS
INCONEL ALLOYS
MATERIALS
MATHEMATICS
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL BASE ALLOYS
POWDERS
SHOCK WAVES
SIMULATION
STRESSES