Accession Number:

AD1053665

Title:

Accelerated Dynamic Corrosion Test Method Development

Descriptive Note:

Technical Report,11 May 2009,31 Dec 2016

Corporate Author:

Southwest Research Institute San Antonio United States

Personal Author(s):

Report Date:

2017-11-01

Pagination or Media Count:

307.0

Abstract:

Perhaps the most widely recognized accelerated corrosion test is the ASTM B117 salt fog test. However, numerous studies have demonstrated that this test method has poor correlation to outdoor exposures, particularly for non-chromate primers. As a result, more realistic cyclic environmental exposures have been developed to more closely resemble actual atmospheric corrosion damage. Several existing tests correlate well with the outdoor performance of some materials and assemblies of interest, but not all. The risk, then, is that promising new environmentally friendly technologies may be incorrectly rejected based on corrosion processes observed in flawed laboratory tests.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE