Vergleich des zeitlichen Ablaufs der Werkstoffzerstörung durch interkristalline Spannungsrißkorrosion (SpRK) im Labor und unter betrieblichen Bedingungen

Abstract

Comparison of the Material Damage Progression by lntercristalline Stress Corrosion Cracking in the Laboratory and during Service ConditionsSimulation of the stress corrosion attack on structural steel in nitrate containing elektrolytes under practical service conditions. Description of the material damage process and definition of the different corrosion rates which can be deduced therefrom. The laboratory results permit the statement of a minimum and a maximum destruction rate by stress corrosion cracks. The results of measurements during service confirm the findings in the laboratory while the comparable damage pictures during laboratory testings and during service attribute to the understanding of not clarified phenomena of the damage process during service.