Accession Number : ADA293108

Title :   Recent Developments in Powder Metallurgy Processing Techniques,

Corporate Author : METALS INFORMATION ANALYSIS CENTER WEST LAFAYETTE IN

Personal Author(s) : Froes, F. H. ; Desai, Pramod D.

Report Date : NOV 1994

Pagination or Media Count : 141

Abstract : Recent developments in powder metallurgy (P/M) processing techniques with emphasis on those 'far from equilibrium' processes which lead to enhanced mechanical and physical properties compared to conventional ingot metallurgy (I/M) approaches are reviewed. The text critically reviews the current and developing science/technology in the P/M field and the trends which are occurring. This should allow guidance to managers in their unenviable task of deciding where to put increasingly scarce research dollars. Amongst the facets of P/M synthesis/processing which offer the greatest future potential are fine powders (less than or equal to 1 micrometer), powder injection molding, mechanical alloying, vapor deposition, reactive processing, self-propagating high temperature synthesis, functionally graded materials, compaction with emphasis on reduced thermal exposures in combination with shape-making, metal matrix composites including recyclability issues, tool steels, joining, and modelling and real-time sensor control. The latter two aspects of the technology can broadly improve quality/reproducibility while leading to a cost-effective product. jg

Descriptors :   *POWDER METALLURGY, THERMAL PROPERTIES, CONTROL, MECHANICAL PROPERTIES, DETECTORS, COST EFFECTIVENESS, REAL TIME, TOOLS, PHYSICAL PROPERTIES, PROCESSING, COMPOSITE MATERIALS, HIGH TEMPERATURE, SHAPE, REACTIVITIES, VAPOR DEPOSITION, METAL MATRIX COMPOSITES, EQUILIBRIUM(GENERAL), ALLOYS, STEEL, GUIDANCE, REPRODUCIBILITY, CASTINGS, FINE GRAINED MATERIALS, COMPACTING, INJECTION MOLDING.

Subject Categories : Metallurgy and Metallography
      Inorganic Chemistry
      Physical Chemistry
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE