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mazda cx 7 grand touring rear passenger side axle shaft | mazda cx 7 grand touring rear passenger side axle shaft sale | mazda cx 7 grand touring rear passenger side axle shaft buy | mazda cx 7 grand touring rear passenger side axle shaft price Part mazda cx 7 grand touring | mazda cx 7 grand touring parts | mazda cx 7 grand touring accessory | mazda cx 7 grand touring parts sale | mazda cx 7 grand touring parts buy | mazda cx 7 grand touring 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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