# # SAE86B20 Simulated Carburized Core Q+T Rc=36 100%Martensite ? # Material cyclically softens substantially. # ElecFurnace, ConCast(184.2mm billet), HotRolled to 53.2mm bar. # Inclusions: TypeABC=none obsv. TypeD=3.5Thin' # ASTM Grain size: 7 to 8, # Test: UoToledo, F.Yin and A.Fatemi Apr.2005 #FileType= strain_life #DataType= raw #Name= SAE86B20 #Name= AisiIt_74 #Stress_units= MPa #Strain_units= strain #Sy= 989.0 #Su= 1034.1 #E= 205600 avg. of 18 obsv. Initial report=204500 #monotonic_K= 1213.0 #monotonic_n= 0.037 #LowerYield= 980.1 #UpperYield= 995.9 #FractureStrain= 1.013 #FractureStress= 2447 ? Engr. is 900 check. #%RA= 63.7 #MaterialForm= bar #FailureDef= 50% load drop #Hardness, Rockwell C= 36 #BHN= 336 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus 0.0198 406 868 -14.2 0.01559 207000 #IGL 0.0198 418 874 -16.5 0.01553 210000 #IGL 0.0198 488 851 -13.3 0.01563 208000 #IGL 0.0100 1804 769 -6.5 0.00620 203000 #IGL 0.0099 1890 772 -9.3 0.00616 205000 #IGL 0.0100 1910 776 -10.0 0.00621 208000 #IGL 0.0050 10006 695 10.2 0.00158 205000 #IGL 0.0050 10488 698 -6.8 0.00158 204000 #IGL 0.0050 10596 692 -6.6 0.00161 205000 #IGL 0.00373 21598 674 8.4 0.00043 210000 #IGL 0.00374 30406 664 33.7 0.00049 203000 #IGL 0.00375 35542 683 -38.4 0.00040 205000 #IGL 0.00299 116008 618 72.8 0.00000 206000 #IGL 0.00300 126230 610 32.9 0.00001 203000 #IGL 0.00299 155828 598 12.5 0.00006 201000 #IGL 0.00250 457652 521 -12.6 0.00000 209000 #IGL 0.00225 10000000 460 0.0 0.00000 205600 #Runout 0.00224 10000000 460 66.8 0.00000 205000 #Runout #Basic Oxygen= False #Electric Furnace= True #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= True #Martensite, %= 100 #Carbon, %= 0.19 #Manganese, %= 0.9 #Phosphorus, %= 0.018 #Sulfur, %= 0.029 #Silicon, %= 0.24 #Copper, %= 0.24 #Nickel, %= 0.36 #Chromium, %= 0.58 #Molybdenum, %= 0.2 #Aluminum, %= 0.021 #Titanium, %= 0.034 #Calcium, %= 0.00 #Boron, %= 0.002 #Tin, %= 0.010 #Oxygen, ppm= 12 #Nitrogen, ppm= 65 # #