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JOM

, Volume 49, Issue 2, pp 29–33 | Cite as

The effect of preaging on the delayed aging of Al−7Si−0.3Mg

  • S. Murali
  • Y. Arunkumar
  • P. V. J. Chetty
  • K. S. Raman
  • K. S. S. Murthy
Aluminum Research Summary

Abstract

Al−7Si−0.3Mg is a commonly used commercial casting alloy because of its excellent castability combined with good mechanical properties. The post-casting heat treatment isone factor that affects the mechanical properties; during heat treatment, a delay between solutionizing and artificial aging (delayed aging) leads to a reduction in hardness, ultimate tensile strength, and yield strength in the alloy. The investigation reported here was aimed at understanding the extent to which the harmful effect of delayed aging on hardness/strenght can be nullified. The results obtained were explained using Pashley’s kinetic model.

Keywords

Ultimate Tensile Strength Aging Temperature Artificial Aging Preaging Treatment Trace Addition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© The Minerals, Metals & Materials Society 1997

Authors and Affiliations

  • S. Murali
  • Y. Arunkumar
  • P. V. J. Chetty
  • K. S. Raman
  • K. S. S. Murthy

There are no affiliations available

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