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prEN ISO 10275

Metallic materials - Sheet and strip - Determination of tensile strain hardening exponent (ISO/DIS 10275:2020)

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ISO/FDIS 10275; prEN ISO 10275
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Põhitekst
01.07.2014
Põhitekst
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.
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