ISO 10275:2020 金属材料 薄板和薄带 拉伸应变硬化指数的测定

标准编号：ISO 10275:2020

中文名称：金属材料 薄板和薄带 拉伸应变硬化指数的测定

英文名称：Metallic materials — Sheet and strip — Determination of tensile strain hardening exponent

发布日期：2020-08

标准范围

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.

标准预览图