# # Fitted Curve ! # Note: no plastic strains. Used modulus to calc Stress. # SAE5120 Carburized Rc= 61.5 # ElecFurnace, ConCast 152x152mm HotRolled to 31.8mmBar, Specimens machined # then Carburized, then polished. # 10%Bainite, 90%Martensite, # Test: UoWaterloo A.A. Rteil and T.H.Topper Sept2005 # saedigcurve_v2.2.f starts. #FileType= strain_life #DataType= fitted #Name= SAE5120 #Name= AisiIt_56 #Stress_units= MPa #Strain_units= strain #Sy= 1161.1 #Su= 1403.0 #E= 183700 #monotonic_K= 5317.9 #monotonic_n= 0.245 #FractureStrain= 0.027 #FractureStress= 1442 #%RA= 2.7 #MaterialForm= bar #FailureDef= 50% load drop #Hardness, Rockwell C= 61.5 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= True #Bainite, %= 10 #Martensite, %= 90 #Carbon, %= 0.2 #Manganese, %= 0.79 #Phosphorus, %= 0.013 #Sulfur, %= 0.025 #Silicon, %= 0.25 #Copper, %= 0.10 #Nickel, %= 0.05 #Chromium, %= 0.8 #Molybdenum, %= 0.02 #Vanadium, %= 0.00 #Columbium/Niobium, %= 0.00 #Aluminum, %= 0.025 #Lead, %= 0.000 #Titanium, %= 0.003 #Calcium, %= 0.00 #Cobalt, %= 0.005 #Zirconium, %= 0.001 #Boron, %= 0.0003 #Tin, %= 0.006 # SAE5120 AisiIt_56 BHN= **** Fn= 0 # Monotonic Props. Cyclic Props. #ELAS. MOD.= 26643. KSI, 184. GPA K' = 0.0 KSI, 0.MPA #YIELD,0.2%= 168. KSI, 1161. MPA N' = 0.0000 #ULT. STRG.= 203. KSI, 1403. MPA F. STRG COEF= 288.3 KSI, 1988.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.0741 #N = 0.0000 FAT DUCT COEF= 0.0000 #RED. IN AREA = 2.7 F.DUCT EXP, c= 0.0000 #T. FRAC. STG.= 209.1 KSI, 1442. MPA Exp Cyc Yld = 0. Ksi, 0.MPA #T. FRAC. STR.= 0.027 Fit Cyc Yld = 0. Ksi, 0.MPA #No. fatigue data points= 21 # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' # NOTE!! Short life and Fatigue limit fitted manually. #Stress_Units= MPa # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. .027 1 1440. 0. .0192 183700. #Fitted_point manually. 0.00649 1000 1192. 0. 0. 183700. #Fitted_point 0.00547 10000 1005. 0. 0. 183700. #Fitted_point 0.00461 100000 847 0. 0. 183700. #Fitted_point 0.00389 1000000 715. 0. 0. 183700. #Fitted_point 0.00328 10000000 603 0. 0. 183700. #Fitted_point 0.00328 10000000 603 0. 0. 183700. #Fitted_point manually #