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Hardness and mechanical property relationships in directionally solidified aluminium-silicon eutectic alloys with different silicon morphologies

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Abstract

Hardness and tensile property measurements made on directionally solidified Al-Si eutectic alloys show that definite but different hardness-growth velocity and hardness-silicon interparticle spacing relationships exist for alloys with different silicon eutectic phase morphologies. Tensile property measurements show that hardness and 0.2% proof stress follow silicon interparticle spacing relationships of the same form. It is suggested that hardness can only be used to measure proof stress when the eutectic structure displays a single silicon eutectic phase morphology.

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Authors and Affiliations

  1. Research Laboratories, G.P.O. Box 502, Rawalpindi, Pakistan

    S. Khan

  2. Manchester Materials Science Centre, University of Manchester, Grosvenor Street, M1 7HS, Manchester, UK

    A. Ourdjini, Q. S. Named, M. A. Alam Najafabadi & R. Elliott

Authors
  1. S. Khan
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  2. A. Ourdjini
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  3. Q. S. Named
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  4. M. A. Alam Najafabadi
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  5. R. Elliott
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Khan, S., Ourdjini, A., Named, Q.S. et al. Hardness and mechanical property relationships in directionally solidified aluminium-silicon eutectic alloys with different silicon morphologies. JOURNAL OF MATERIAL SCIENCE 28, 5957–5962 (1993). https://doi.org/10.1007/BF00365208

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  • DOI: https://doi.org/10.1007/BF00365208

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