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- Title
Fatigue testing and non‐destructive characterization of AlSi9Cu3(Fe) die cast specimens by computer tomography.
- Authors
Szalva, Péter; Orbulov, Imre Norbert
- Abstract
AlSi9Cu3(Fe) aluminum alloy fatigue test specimens were produced by high pressure die casting (HPDC) and vacuum‐assisted die casting (VPDC) techniques. Non‐destructive material tests (NDT) have been performed on cast specimens by computed tomography (CT). Uniaxial fatigue tests with two stress ratios of R = −1 and R = 0.1 have been performed in the high cycle fatigue (HCF) regime, and the CT results were reassigned after the fatigue test in order to identify the origin of the failure. The aim of this paper is to establish a relationship between the CT result and fatigue failure of die cast specimens. The location and the size of the casting defect determine the specimen fatigue life. It has also been found that the fatigue life is determined not only by the size of the defect but also by its location with respect to the position of the highly stressed area. The results can be used to judge the applicability of cast parts after non‐destructive testing.
- Subjects
MATERIAL fatigue; DIE castings; HIGH cycle fatigue; NONDESTRUCTIVE testing; DIE-casting
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2020, Vol 43, Issue 9, p1949
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.13249