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Mechanics in Engineering ›› 2013, Vol. 35 ›› Issue (4): 10-19.doi: 10.6052/1000-0879-12-385

• Review • Previous Articles     Next Articles

A SURVEY ON DAMAGE PARAMETERS OF ALUMINUM ALLOY CORROSION PIT

SUN Liao1, YAO Weixing2   

  1. 1. Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2012-10-16 Revised:2013-03-31 Online:2013-08-08 Published:2013-08-26

Abstract:

This paper sorts pit damage parameters into four categories: size, shape, statistical and test parameters, reviews the key damage parameters that affect the residual fatigue life most such as pit depth, projection area, aspect ratio, rectangular ratio, corrosion area ratio, fractal dimension and pre-corrosion coeffcient, and summarizes the methods to equal pit as an initial crack.

Key words:

pit morphology|residual fatigue life|damage parameters|pit equivalence

CLC Number: 

  • TG171