Analysis of localized microstructural changes in dynamically consolidated metal powders. [AL-6% Si]

Conference · Mon Jan 30 04:00:00 EST 1984

OSTI ID:5112646

Gourdin, W H

I demonstrate that conceptually simple and quantitatively useful models are available to describe both the localized deposition of shock wave energy during dynamic consolidation of a metal powder, and the accompanying effects on the final compact microstructure. The type and extent of transformation may be estimated, as well as the shock conditions and powder characteristics necessary for optimum consolidation. If the shock history is known, such models can be used to describe different microstructural regions in the final compact. I suggest that the marriage of microstructural models to existing hydrodynamic computer programs could provide a means of making realistic predictions of the type, extent and gross distribution of microstructural changes produced when compaction occurs in complex geometries.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5112646
• Report Number(s): UCRL-89774; CONF-840653-2; ON: DE84006298
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ABSORPTION
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
COMPACTING
CRYSTAL STRUCTURE
ELEMENTS
ENERGY ABSORPTION
EXPLOSIVE FORMING
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS WORKING
MELTING
METALLURGY
METALS
MICROSTRUCTURE
PHASE TRANSFORMATIONS
POWDER METALLURGY
POWDERS
SHOCK WAVES
SILICON ALLOYS
STEELS