Accession Number:

ADA162035

Title:

A Fundamental Study of Droplet Impingement, Spreading and Consolidation.

Descriptive Note:

Annual rept. 1 Jul 84-30 Jun 85,

Corporate Author:

DREXEL UNIV PHILADELPHIA PA DEPT OF MATERIALS ENGINEERING

Personal Author(s):

Report Date:

1985-09-01

Pagination or Media Count:

32.0

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 mechanisms 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.

Subject Categories:

  • Industrial Chemistry and Chemical Processing
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE