Fatigue mechanical effects

Scott, P. M., Chemistry effects in corrosion fatigue , in ASTM STP 801, Corrosion fatigue mechanics, chemistry and engineering, American Society for Testing and Materials, pp. 319-345 (1983)... 

Mechanical effects Corrosion can often be initiated or intensified by the conjoint action of mechanical factors. Typical examples include the presence of inherent or applied stresses, fatigue, fretting or cavitation effects. Inhibitors that are effective in the absence of some or all of these phenomena may not be so in their presence. In fact it may not always be possible to use inhibitors successfully in these situations and other methods of corrosion prevention will be required. 

P.M. Scott, Chemistry Effects in Corrosion Fatigue, Corrosion Fatigue Mechanics, Metallurgy, Electrochemistry, and Engineering, STP 801, ASTM, 1983, p 319-350... 

Below is a brief account of the mechanical aspect contribution into corrosive wear. Failure of materials is treated today as a discrete process of jerky local elementary acts repeated periodically in time [15]. Since metal friction has a pulse behavior and metals wear by the fatigue mechanism [16], so friction and wear in corrosion-active media should be treated as the interrelation of the process with adsorption and corrosive fatigue. Adsorption fatigue usually paves the way for corrosion processes in the materials and precedes stronger effects in the media where the rubbing bodies operate [17]. 

Destruction of macromolecules and distortion of the permolecular structure lead to changes in their properties, especially solubility, resistance to chemical agents, strength, fatigue and impact viscosity, as well as elasticity and plasticity. From the practical viewpoint, variations in polymer properties induced by the tribochemical destruction raise interest in two respects first, as unavoidable phenomena that accompany any mechanical effect on the polymers during their treatment or operation and, second, as a deliberate change of properties of solid pol3uners to obtain materials with specific characteristics. 

For every chemistry, a better understanding on the degradation and fatigue mechanisms of ferroelectric materials, caused by domain wall pinning, defect agglomeration, or other effects, will... 

Taira, S., Tanaka, T., Hoshina, M. Grain size effect on crack nucleation and growth in long life fatigue of low-carbon steel. Fatigue mechanism. American Society for Testing and Materials ASTM STP 675, pp. 135-173 (1979)... 

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