ACCELERATED CORROSION TESTING

摘要

Accelerated corrosion testing of metals and coatings was first developed in the late 1890s and early 1900s for testing products to increase their useful performance and service life. This method of testing the corrodibility of ferrous and nonferrous metals and organic and inorganic coatings has since been improved and variations added to better test new materials and how they may withstand a wider range of real world environments. Accelerated corrosion testing has also evolved from providing information to help determine durability of products and quality assurance to use in product research and development. Professional trade, industry, and standards organizations, such ASTM International, the Society of Automotive Engineers (SAE), the Federation of Societies for Coatings Technologies (FSCT), and others, have developed a number of accelerated corrosion tests to meet the demands of changes in technology, materials, and other performance requirements and environmental regulations. For instance, water-based coatings have been developed as a response to environmental concerns. Some powder coatings and their application methods reduce (he use of solvents and ease application. In addition, the automotive industry has improved coatings and increased the number of surfaces coated as part of the response to market pressures for longer warranties.