ISO 17081:2004 电气化学法测量金属中氢浸透和氢摄取及传递的方法

标准编号：ISO 17081:2004

中文名称：电气化学法测量金属中氢浸透和氢摄取及传递的方法

英文名称：Method of measurement of hydrogen permeation and determination of hydrogen uptake and transport in metals by an electrochemical technique

发布日期：2004-11

标准范围

ISO 17081:2004规定了使用电化学技术测量氢渗透和测定金属中氢原子吸收和传输的实验室方法。本国际标准中使用的术语“金属”包括合金。本国际标准描述了一种基于稳态氢通量测量的金属吸氢评估方法。它还描述了一种测定金属中氢原子有效扩散率以及区分可逆和不可逆俘获的方法。ISO 17081:2004给出了试样制备、环境变量控制和监测、试验程序和结果分析的要求。原则上，本国际标准可适用于可测量氢渗透的所有金属，该方法可用于根据暴露金属的吸氢量对不同环境的相对侵蚀性进行排序。

ISO 17081:2004 specifies a laboratory method for the measurement of hydrogen permeation and for the determination of hydrogen atom uptake and transport in metals, using an electrochemical technique. The term "metal" as used in this International Standard includes alloys.This International Standard describes a method for evaluating hydrogen uptake in metals, based on measurement of steady-state hydrogen flux. It also describes a method for determining effective diffusivity of hydrogen atoms in a metal and for distinguishing reversible and irreversible trapping.ISO 17081:2004 gives requirements for the preparation of specimens, control and monitoring of the environmental variables, test procedures and analysis of results.This International Standard may be applied, in principle, to all metals for which hydrogen permeation is measurable and the method can be used to rank the relative aggressivity of different environments in terms of the hydrogen uptake of the exposed metal.

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