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NS-EN ISO 10275:2020

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Abstract

This document specifies a method for determining the tensile strain hardening exponent n of flat products (sheet and strip) made of metallic materials. The method is valid only for that part of the stress-strain curve in the plastic range where the curve is continuous and monotonic (see 8.4). In the case of materials with a serrated stress-strain curve in the work hardening range (materials which show the Portevin-Le Chatelier effect, e.g. AlMg-alloys), the automatic determination (linear regression of the logarithm true stress vs. the logarithm true plastic strain, see 8.7) is used to give reproducible results.

Document information

  • Standard from SN
  • Published:
  • Edition: 2020-09
  • Version: 1
  • Document type: NAT
  • ICS 77.040.10
  • National Committee CEN/TC 459/SC 1

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