XU Xiao-lei
Abstract
42CrMoA steel connecting rod of a diesel engine fractured during performing fatigue test.The fracture surface was observed by OM and SEM.The results show that the double-source fatigue fracture is the failure way of the connecting rod.The appearance of the decarburization layer on the connecting rod surface is main reason for the fatigue fracture.
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42CrMoA steel connecting rod of a diesel engine fractured during performing fatigue test.The fracture surface was observed by OM and SEM.The results show that the double-source fatigue fracture is the failure way of the connecting rod.The appearance of the decarburization layer on the connecting rod surface is main reason for the fatigue fracture.
Key concepts: Decarburization, Connecting rod, Materials science, Fracture (geology), Fatigue testing, Fatigue limit, Metallurgy, Composite material