G0015-05与腐蚀及腐蚀测试有关的标准术语.pdf

Designation: G 15 – 05 Standard Terminology Relating to Corrosion and Corrosion Testing1 This standard is issued under the fixed designation G 15; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope anodic protection—a technique to reduce the corrosion rate of 1.1 This terminology covers commonly used terms in the a metal by polarizing it into its passive region where field of corrosion. Related terms may be found in Terminolo- dissolution rates are low. gies D 16, D 4538, G 40, or other ASTM terminology stan- anolyte—the electrolyte adjacent to the anode of an electro- dards. All terms defined by ASTM committees may be found in lytic cell. the ASTM Dictionary of Engineering Technology . auxiliary electrode—See counter electrode. breakdown potential—the least noble potential where pitting 2. Referenced Documents or crevice corrosion, or both, will initiate and propagate. 2.1 ASTM Standards: cathode—the electrode of an electrolytic cell at which reduc- D 16 Terminology for Paint, Related Coatings, Materials, tion is the principal reaction. (Elec