Abstract
The majority of low pressure steam turbine damages are caused by corrosion fatigue. This kind of damage occurs primarily in the Wilson-zone of steam turbine machines. In spite of careful feed water washing there is still a build-up of damaging chloride-containing water impurities on the turbine blades. Recent investigations of duplex stainless-steels, especially the steel X 3 CrMnNiMoN 25 6 4 (A905; austenite/ferrite equals 50/50) show both a good corrosion behavior and a sufficient strength of this type of steel. In the present investigations the dependence on the corrosion fatigue limit on the pH-value, chloride concentration, temperature and the behavior of corrosion cracking (crack initiation) is evaluated.
| Titel in Übersetzung | Investigation into Corrosion Fatigue and Crack Initiation with the Newly Developed Duplex Steel X 3 CrMnNiMoN 25 6 4 by Comparison with the Known Ferritic-Austenitic Steel X 2 CrNiMoN 22 5. |
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| Originalsprache | Deutsch |
| Seiten (von - bis) | 614-622 |
| Seitenumfang | 9 |
| Fachzeitschrift | Materials and Corrosion |
| Jahrgang | 38 |
| Ausgabenummer | 10 |
| Publikationsstatus | Veröffentlicht - Okt. 1987 |