Ψαθυροποίηση υδρογόνου λόγω διάβρωσης και προστασία με χρήση τοπικής επικάλυψης με καθαρό αλουμίνιο
Abstract
A possible integrity loss represents a not tolerable scenario for aging aircraft structures. To face the mentioned technological and scientific problem essential efforts have been undertaken by the scientific community as well as the aircraft industries and the international and national flight safety organizations. Nowadays research focuses to the study of the effects of widespread fatigue damage (WFD) and multiple site damage (MSD) scenarios on the structural integrity of the aging aircrafts. However, in numerous cases, additionally to WFD and MSD, extensive corrosion problems have been observed. Recent investigations have shown that the corrosion attack does not cause only a reduction of the cross-section of the structural member as well as a possible onset of fatigue cracks, but also a corrosion induced hydrogen embrittlement which reduces the fracture toughness of the material and its ability to store mechanical energy before fracture. In the present thesis: - Evidence is presente ...
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