A Fundamental Study of Droplet Impingement, Spreading and Consolidation.

Abstract

Spray forming in the Osprey mode is a process in which gas atomized molten metal droplets are interrupted in flight by impingement on a substrate to form a relatively thick deposit. The overall objective of this research program is to develop a fundamental processing science base for the process. To this end, concurrent experimental and modeling studies focus on droplet velocity and temperature profiles, the mechanism(s) of droplet-substrate interactions, droplet spreading on impact and droplet solidification, and the relationship between process parameters and microstructural integrity of the deposit. On-going experimental studies are reviewed and some preliminary results of the modeling work are presented.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA162035

Entities

People

  • Alan Lawłey
  • D. Apelian
  • G. Gillen
  • P. Mathur

Organizations

  • Drexel University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acquisition
  • Aluminum Alloys
  • Cameras
  • Composite Materials
  • Fluid Flow
  • Heat Transfer
  • Materials
  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Measurement
  • Photographs
  • Photography
  • Powders
  • Spray Forming
  • Standards
  • Tool Steel

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Internal Combustion Engine (ICE) Technology.
  • Systems Analysis and Design