Method of equivalent research of typical automotive parts

摘要

The sample corrosion shape and appearance are compared between vehicle accelerated corrosion test and laboratory accelerated corrosion test. An equivalent relationship between laboratory accelerated corrosion and actual service condition is obtained on the basis of the research of distribution characteristics for two corrosion damage. The calculation indicates that this relationship of typical component: y = 32.86 e^0.5x (where, y is time of laboratory accelerated corrosion, x is time of actual service condition), thereby laying a foundation for anti-corrosion design and coating selection.