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The determination of yield strength from hardness measurements

  • Mechanical Behavior
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Abstract

It is shown that the 0.2 pct offset yield strength of a material (in kg per sq mm) can be obtained from simple hardness measurements using the expression σ y = (H/3)(0.1)m-2, whereH is the Diamond pyramid hardness andm is Meyer’s hardness coefficient. This expression holds for brass, steel in either the cold rolled or tempered condition, and aluminum alloys in either the cold rolled or aged condition. It is also shown that the above expression can be derived from a simple model assuming σ = K∈ n as the stress strain relationship.

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Author information

Authors and Affiliations

  1. Metallurgical Science Laboratory, Department of Mechanical Engineering, University of Manitoba, Winhepeg, Manitoba

    J. R. Cahoon

  2. Fisher Controls Company, Woodstock, Ontario

    W. H. Broughton

  3. Mobile Oil Company, Calgary, Alberta

    A. R. Kutzak

Authors
  1. J. R. Cahoon
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  2. W. H. Broughton
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  3. A. R. Kutzak
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Additional information

W. H. BROUGHTON and A. R. KUTZAK, formerly Students at the University of Manitobe.

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Cahoon, J.R., Broughton, W.H. & Kutzak, A.R. The determination of yield strength from hardness measurements. Metall Trans 2, 1979–1983 (1971). https://doi.org/10.1007/BF02913433

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  • DOI: https://doi.org/10.1007/BF02913433

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