Multi-length scale modeling of carburization, martensitic microstructure evolution and fatigue properties of steel gears
Edward Charles Henry Crawford O’ Brien, Hemantha Kumar Yeddu*()

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Fig. 5.. Spur gear (inset) designed using Inventor and the gear tooth considered for fatigue analysis (ellipse). Carburized case can be clearly seen in the single gear tooth (left). Arrow indicates the loading direction and location.