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ASTM G71-81(2009)
Standard Guide for Conducting and Evaluating Galvanic Corrosion Tests in Electrolytes
5 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
25.220.20 Surface. Including anodization, conversion coating, thermal spraying, etc. / Обработка поверхности. Включая анодирование, покрытия, химически взаимодействующие с подложкой, термораспыление и т.д.
Сборник (ASTM):
03.02 Corrosion of Metals; Wear and Erosion / Коррозия металлов; Износ и разрушение (эрозия) металлов
Тематика:
Corrosion & Wear
Описание
Значение и использование

Use of this guide is intended to provide information on the galvanic corrosion of metals in electrical contact in an electrolyte that does not have a flow velocity sufficient to cause erosion-corrosion or cavitation.

This standard is presented as a guide for conducting galvanic corrosion tests in liquid electrolyte solutions, both in the laboratory and in service environments. Adherence to this guide will aid in avoiding some of the inherent difficulties in such testing.

Область применения

1.1 This guide covers conducting and evaluating galvanic corrosion tests to characterize the behavior of two dissimilar metals in electrical contact in an electrolyte under low-flow conditions. It can be adapted to wrought or cast metals and alloys.

1.2 This guide covers the selection of materials, specimen preparation, test environment, method of exposure, and method for evaluating the results to characterize the behavior of galvanic couples in an electrolyte.

Note 1—Additional information on galvanic corrosion testing and examples of the conduct and evaluation of galvanic corrosion tests in electrolytes are given in Refs (1) through (7).

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Ключевые слова:
corrosion; dissimilar metals; galvanic corrosion; galvanic couple; zero resistance ammeter; Field testing--corrosion; Galvanic corrosion