# NOTE !!: Uses Fitted Curve data !! # SAE 15V41 As Hot Rolled, Controlled Cooled AISI Iter. 91 HRc= 27 # Spec. machined from 26.5mm bar, polished # MacSteel Monroe Heat M94401 Elec.Furnace, ConCast, HotRolled, Cooled # Chem.: 0.43%C 1.52Mn .017P .025S .26Si .14Cu .13Ni .18Cr .01Mo # .17V 110ppm_N Pearlite= 60% Ferrite= 40% # Tested by A.A.Rteil, UWaterloo, 2006 #FileType= strain_life #DataType= fitted #Name= SAE15V41 #Name= AisiIt_91 #Stress_units= MPa #Strain_units= strain #Sy= 665.5 #Su= 1070.7 #E= 192700 #monotonic_K= 1670.0 #monotonic_n= 0.148 #MaterialForm= bar #FailureDef= 50% load drop #Hardness, Rockwell C= 27 #BHN= 264 # #Original No. fatigue data points= 22 # #NOTE!! The Following Points are <b>FITTED DATA:</b> #NOTE!! Fitted Stress computed using Experm. K' and n' #NOTE!! Manually adjusted fatigue limit points. FAC may09 #_Total Strain 2Nf Stress Mean Plastic Strain #_ Amp Amp Stress Amp EMod. 0.78555 1 1505.1 0. 0.77774 192700. #Fitted_point 0.50268 2 1422.4 0. 0.49530 192700. #Fitted_point 0.27962 5 1320.1 0. 0.27276 192700. #Fitted_point 0.18017 10 1247.6 0. 0.17370 192700. #Fitted_point 0.11673 20 1179.1 0. 0.11061 192700. #Fitted_point 0.06658 50 1094.3 0. 0.06090 192700. #Fitted_point 0.04415 100 1034.2 0. 0.03878 192700. #Fitted_point 0.02976 200 977.3 0. 0.02469 192700. #Fitted_point 0.01830 500 907.0 0. 0.01360 192700. #Fitted_point 0.01311 1000 857.2 0. 0.00866 192700. #Fitted_point 0.00972 2000 810.2 0. 0.00552 192700. #Fitted_point 0.00695 5000 752.1 0. 0.00304 192700. #Fitted_point 0.00563 10000 711.0 0. 0.00194 192700. #Fitted_point 0.00473 20000 672.3 0. 0.00124 192700. #Fitted_point 0.00393 50000 624.6 0. 0.00069 192700. #Fitted_point 0.00351 100000 591.0 0. 0.00044 192700. #Fitted_point 0.00319 200000 559.4 0. 0.00029 192700. #Fitted_point .003 300000 537. 0. .00021 197700. #Fitted_point interpolated. .003 10000000 537. 0. .00021 197700. #Fitted_point interpolated. #