Abstract
The metallography was used for evaluation of fractured elements from different aluminium alloys´ elements applied in Czech transmission system. Although the fractured elements were produced from different aluminium alloys (hypereutectic Al-18%Si, AlSi10Mg, Al0,7MgSi) the main reason of fractures was very similar for all of them – the low quality of casting, inhomogeneous structure and composition of matrix. These analyses were performed on fracture surfaces and on reference matrix. Typical defect evident on fractured areas was dark stains. In some cases, the quartz concentration was ca twice into comparison with standards composition and reference matrix.
Published Version
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