YOUNG'S MODULUS OF EUTECTIC ALLOY SYSTEMS WITH SPECIAL EMPHASIS ON THE SILVER-LEAD SYSTEM

Abstract

The dynamic Young's modulus - composition relation in eutectic alloy systems, without terminal solid solubility, follows either a linear relation or a less than linear relation. Essentially linear relations are obtained for systems where the moduli differences between the two phases are small or when the microstructure of the alloy exhibits a strong fibered texture such as is obtained in a cold drawn material. Eutectic systems containing a random distribution of phases with large moduli differences between the phases exhibit less than linear relations between modulus and composition. The theory of Hashin and Shtrikman is in qualitative agreement with experimental data obtained in the Ag-Pb system. Quantitatively, the actual modulus values of the composite are higher than the predicted values. This discrepancy may be due to the presence of internal stresses at the Ag-Pb interface which factor is not taken into consideration in the Hashin-Shtrikman theory.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1965
Accession Number
AD0613182

Entities

People

  • O. D. Sherby
  • S. Umekawa

Organizations

  • Stanford University

Tags

DTIC Thesaurus Topics

  • Alloys
  • Composite Materials
  • Diagrams
  • Elastic Properties
  • Equations
  • Experimental Data
  • Frequency
  • Lead Alloys
  • Materials
  • Materials Science
  • Measurement
  • Modulus Of Elasticity
  • Piezoelectric Crystals
  • Resonant Frequency
  • Shear Modulus
  • Solid Solutions
  • Vibration

Readers

  • Calculus or Mathematical Analysis
  • Powder metallurgy of Titanium alloys.
  • Reinforced Composite Materials