Melt Spinning of Intermetallic Alloys: Heat Transfer and Microstructure

Abstract

Analyses and experiments are performed to investigate heat transfer in melt spinning of intermetallic materials. Previous research efforts in the modeling, the analysis, and the measurement of melt spinning processes are reviewed. The importance of the process parameters including melt temperature, melt pouring rate, wheel temperature, spinning speed, nozzle-to-wheel gap, and thermal properties of ribbon and wheel are addressed. A one-dimensional transient mathematical model is developed to predict thermal behavior of melt spinning. The solid-liquid interface velocity and the cooling rate for melt spun Al3Ti are presented. The significance of solidification rate is demonstrated by comparing the macrostructure and microstructure of a rapidly solidified Al3Ti ribbon with a conventionally solidified ingot of the same composition.

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Document Details

Document Type
Technical Report
Publication Date
Apr 21, 1992
Accession Number
ADA257455

Entities

People

  • Jim S. Chen
  • William E. Frazier

Organizations

  • Naval Air Warfare Center Aircraft Divison

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerial Warfare
  • Air Force
  • Aircrafts
  • Crystal Structure
  • Fiber Spinning
  • Fluid Flow
  • Heat Energy
  • Heat Of Fusion
  • Heat Transfer
  • Latent Heat
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Engineering
  • Phase Transformations
  • Thermodynamics
  • Warfare

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Powder metallurgy of Titanium alloys.