# Note! : Periodic Overload Tests # SAE8620 Thru Carburized, Vacuum, axial Const.Ampl, HRc=62. # 100% Martensite. # Gerdau Heat M54117: ElectricFurn, VacuDegas LadleRefined ConCast # Chem. before Carburized: .22C .85Mn .013P .009S .210Cu # .500Ni .57Cr .21Mo .002V .003Co .024Al .009Sn # Machined before carburized, Ground and polished after Carb. # Tested by D.Gaia, UWaterloo 2015 #FileType= strain_life #DataType= raw #Name= SAE8620+carb #Name= AISI-It0165 #Name= ThurCarb. #Stress_units= MPa #Strain_units= strain #Sy= 690.0 #Su= 757.0 #eu= 0.0063 Strain at Su. #E= 203000 #monotonic_K= 2710.0 #monotonic_n= 0.214 #%RA= 0.24 % #TrueFractureStrain= 0.005 #TrueFractureStress= 757. #MaterialForm= bar #BHN= 688 #measured: HRc= 60-63 #Initial Moduli were not recorded. #TotStrAmpl 2Nf, StsAmp So PlsStrAmp ?Modulus 0.003910 88 776 0.0 0.000100 203000. 0.003890 104 773 0.0 0.000090 203000. 0.004960 140 975 0.0 0.000170 203000. 0.004890 180 995 0.0 0.000000 203000. 0.004860 325 975 0.0 0.000070 203000. 0.005000 470 1018 0.0 0.000000 203000. 0.003950 1010 789 0.0 0.000070 203000. 0.002760 1898 562 0.0 0.000000 203000. #Tests above are Constant Ampl. #Tests below are Periodic Overload Tests #Both are needed for life curves. 0.001 4578 200 0 0 203000 0.0009 34922 180 0 0 203000 0.0008 85179 160 0 0 203000 0.0007 32211 140 0 0 203000 0.0006 20474 120 0 0 203000 0.0005 81778 100 0 0 203000 0.0004 396160 80 0 0 203000 0.00035 53105 70 0 0 203000 0.0003 2396163 60 0 0 203000 0.0003 589209 60 0 0 203000 0.00025 107495 50 0 0 203000 0.0002 5000000 40 0 0 203000 # #