# # SAE8822 simulated Carburized Core 100%Martensite HRc=39 # Chemical composition is "high side" # Material cyclically softens substantially. See curves. # ElecFurnace, VacuumDegas, LadleRefined, Concast_177mmBillet # HotRolled to 34mm bar. # Process:High Side Composition Quenched and Tempered Simulated # Carburized Core (Atmosphere) # Test: UoWaterloo, M.El-Zeghayar and T.Topper Apr2008 #FileType= strain_life #DataType= raw #Name= SAE8822 #Name= AisiIt_108 #Stress_units= MPa #Strain_units= strain #Sy= 1135.0 #Su= 1215.0 #E= 194000 #monotonic_K= 1430.0 #monotonic_n= 0.037 #FractureStrain= 0.903 #FractureStress= 2690. #%RA= 59.4 #MaterialForm= bar #FailureDef= 50% load drop #Hardness, Rockwell C= 39 #Bhn= 362 #converted #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.00994 1998 856 0.0 0.00552 0000 #None 0.00994 2000 868 0.0 0.00546 0000 #None 0.00990 2000 867 0.0 0.00544 0000 #None 0.00698 5600 823 0.0 0.00273 0000 #None 0.00696 6000 819 0.0 0.00274 0000 #None 0.00696 6400 801 0.0 0.00284 0000 #None 0.00499 20000 758 0.0 0.00108 0000 #None 0.00505 20000 776 0.0 0.00105 0000 #None 0.00502 30000 718 0.0 0.00132 0000 #None 0.00397 79600 752 0.0 0.00010 0000 #None 0.00397 104904 728 0.0 0.00022 0000 #None 0.00398 124000 717 0.0 0.00028 0000 #None 0.00351 137706 681 0.0 0.00000 0000 #None 0.00353 2531528 665 0.0 0.00010 0000 #None 0.00347 3560450 635 0.0 0.00019 0000 #None 0.00319 10000000 602 0.0 0.00009 0000 #Runout 0.00319 10000000 602 0.0 0.00009 0000 #Runout 0.00319 10000000 601 0.0 0.00009 0000 #Runout #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= True #Ladle Refined= True #Ingot Cast= False #Continuous Cast= True #Martensite, %= 100 #Carbon, %= 0.22 #Manganese, %= 0.86 #Phosphorus, %= 0.013 #Sulfur, %= 0.025 #Silicon, %= 0.17 #Copper, %= 0.24 #Nickel, %= 0.43 #Chromium, %= 0.54 #Molybdenum, %= 0.39 #Vanadium, %= 0.00 #Aluminum, %= 0.028 #Tin, %= 0.010 # #