Metallic materials. Sheet and strip. Determination of tensile strain hardening exponent included-in-kit the method for impulse response

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Metallic materials. Sheet and strip. Determination of tensile strain hardening exponent included-in-kit the method for impulse response1 Scope 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.