Steel corrosion fatigue

Gallagher, J. P., and Wei, R. P., Corrosion Fatigue Crack Propagation Behavior in Steels, Corrosion Fatigue Chemistry, Mechanics and Microstructure, NACE-2 (1972), 409. 

Amzallag, C., P. Rabbe, and A. Desestret (1978). Corrosion fatigue behavior of some special stainless steels. Corrosion Fatigue Technology, ASTM STP 642, pp. 117-132. Baumeister, T., E. A. Avallone, and T. Baumeister HI, eds. (1978). Mark s Standard Handbook for Mechanical Engineers, 8th ed., McGraw-Hill, New York. 

Separate the metal from the environment with a physical barrier. Many corrosion inhibitors make use of this principal to protect metals. Proper use of an appropriate inhibitor may reduce or eliminate pitting. Pits are frequently initiation sites for corrosion-fatigue cracks. The effectiveness of inhibitors depends upon their application to clean metal surfaces. An example of this method is the use of zinc coatings on steel to stifle pit formation. 

Fatigue life can be slightly lengthened by anodic protection or by passivation. In acids even passive stainless CrNi steels suffer corrosion fatigue [104]. Resistance can occur if the passive film itself has a fatigue strength (e.g., in neutral waters [105]). 

In contrast to pipelines and harbor installations, platforms are dynamically loaded. Therefore in the choice of steels, in addition to strength and types of machinability, the risk of corrosion fatigue and strain-induced stress corrosion must be taken into account in combination with cathodic protection (see Sections 2.3.3 to 2.3.5). 

D ye penetration inspection. This is a simple technique, requiring a minimum of operator training. In the hands of a skilled operator, it is capable of detecting fine cracks such as chloride stress corrosion cracks in austenitic stainless steels and fatigue cracks. 

Rollins, V., Arnold, B. and Lardner, E., Corrosion Fatigue in High Carbon Steel , British Corrosion Journal, 5, 33 (1970)... 

Fig. 8.65 Corrosion fatigue crack growth data for structural steel in seawater at 0.1 Hz, / = -I to 0.85 and -1.10 V (Ag/AgCI) (after Scott...

Fig. 8.72 Effect of applied potential on corrosion fatigue behaviour of a ferritic stainless steel in 3% NaCl (after Amzallag el al )...

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