Austenitic stainless steel with higher chromium and nickel contain are often used as popular material in the energetics, chemical, food processing and medical applications. That material has a suitable combination of strength and corrosion properties for a given purpose. Their processing technologies are also not above-sophisticated. For these materials are typical some of the following degradation processes. In case of corrosion some types of localized corrosion attack types, such as intergranular, corrosion cracking, etc. It is also necessary to monitor fatigue processes and influences.This article discusses the causes of damage of the sieve of the vibratory separator of MgCl2 . 6H2O. Sieve is made from Steel AISI 304. Damage manifested itself with the cracking of certain strand (wires), mostly in the area of the outer circular frame. The damage started to occur after change of the vibration (frequency) parameters. The possible influences of chemical damage by environment or corrosion attack were observed, mechanical stress, fatigue, etc.For research the methods of optical microscopy and SEM analysis were applied. Fractographical analysis of fracture surfaces, evaluation of mechanical properties (hardness) and verification of chemical composition was carried out. The results show the majority influence of fatigue damage.Keywords: AISI 304 steel, Fatigue, vibration separator, Corrosion environment, damage analysis
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