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On the prediction of tensile properties from hardness tests

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Abstract

The possibility of correlating the hardness to the tensile properties of a material has been investigated using Assab 760 steel, mild steel and API Std 5LX grade X60 pipeline steel that have been heat-treated for different times at various tempering temperatures and 6063-T1 aluminium that has been solution heat-treated. It is found that the strain hardening coefficient and the strength coefficient of all materials tested were linearly related to the hardness, irrespective of the type of hardness measurement used. Using these relationships, equations were defined to estimate the yield and ultimate tensile stresses of the materials. Good agreement between experimental results and estimated values was obtained for all materials studied. The feasibility of using the present findings in non-destructive field testing is discussed.

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Authors and Affiliations

  1. Mechanical Engineering Department, National University of Singapore, Kent Ridge, Singapore

    M. O. Lai & K. B. Lim

Authors
  1. M. O. Lai
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  2. K. B. Lim
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Lai, M.O., Lim, K.B. On the prediction of tensile properties from hardness tests. J Mater Sci 26, 2031–2036 (1991). https://doi.org/10.1007/BF00549163

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  • DOI: https://doi.org/10.1007/BF00549163

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