Multi-length scale modeling of carburization, martensitic microstructure evolution and fatigue properties of steel gears

Edward Charles Henry Crawford O’ Brien, Hemantha Kumar Yeddu

Table 2 Experimental data of stress (S) (in MPa) and average number of cycles to failure (Navg) used in fatigue analysis of gears with different RA content using Ansys [3].

Low RA High RA S Navg S Navg 1750 9 ×103 2100 1.5 ×104 1500 1.95 ×104 1950 2.17 ×104 1250 7.33 ×104 1650 2.2 ×104 1100 1.5 ×105 1350 5.93 ×104 950 2.38 ×105 1100 8.7 ×104 900 7 ×105 900 5.13 ×105 800 2.75 ×106 800 3.39 ×106 NA NA 750 6.41 ×106 NA NA 700 6.73 ×106 NA NA 650 107