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mercedes benz a45 amg rear passenger side axle shaft | mercedes benz a45 amg rear passenger side axle shaft sale | mercedes benz a45 amg rear passenger side axle shaft buy | mercedes benz a45 amg rear passenger side axle shaft price Part mercedes benz a45 amg | mercedes benz a45 amg parts | mercedes benz a45 amg accessory | mercedes benz a45 amg parts sale | mercedes benz a45 amg parts buy | mercedes benz a45 amg parts price made of induction hardened steel removed from the scene of an overturned vehicle was analyzed to determine the most likely cause of the failure. Optical light metallography and scanning electron microscopy with energy dispersive spectroscopy were used to describe the microstructure and mechanical strength was assessed by microstructure measurements. The chemical analysis confirmed that the shaft is made of AISI 4140 steel according to the specifications. However, microstructural characteristics and microstructure measurements showed that the shaft was improperly subjected to heat treatment, resulting in a brittle case, in which crack propagation occurs in an intergranular state relative to shear within the core. This behavior was related to differences in microstructure, R c 58, and a mixture of perlite and ferrite inside the core with R c 25. It is not possible to reconstruct the exact sequence of events leading to fracture, it may be added by A large load inside the brittle started very hard, which could lead to the car overturning and the final fracture due to the overturning collision. However, the onset of cracking cannot be ruled out due to hydrogen produced by rust and water, as well as the possibility that vehicle overturning was the cause of the fracture.
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