#Copyright (C) 2025 F.D.E. Committee #This data file is free software - you can redistribute it and/or #modify it under the terms of the GNU General Public License as #published by the Free Software Foundation; either version 2 of the #license, or (at your option) any later version. #This data file is distributed in the hope that it will be useful, #but WITHOUT ANY WARRANTY - without even the implied warranty of #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #GNU General PUblic License for more details. #You should have received a copy of the GNU General PUblic License #along with this program - if not, write to the Free Software #Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA #Try also their web site: http://www.gnu.org/copyleft/gpl.html # # Inconel 718 Tested 538C heats 1,2,3 # Specimens cut from annealed plates. Solution Anneal 1038 2h, air cool, # duplex age 760C hold 10h,furnace cool to 649C hold 8h, air cool. # Hourglass shape specimens. Diametral tests(?). # Emods not reported, taken from literature. Hardness converted from Su. # StsAmp vs PlasStrAmpl graph missing points. Check the original Ref. !! # Ref.: C.R.Brinkman and G.E.Korth, "Strain Fatigue and Tensile Behavior # Ref.: of Inconel 718 from Room Temperature to 650C," J.of Test. Eval., V2N4 # Ref.: July 1974, pp.249-259. Difficult to correlate Strain-Life-Stress. # Chem.: 3 heats similar but heat3 has only 0.06 Co, See Ref for details. # # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= IN718 #NAME= NickelBased #Name= Test538C #Stress_units= mpa #Strain_units= strain #Heat 1 2 3 #Sy= 993 avg of 1022 985 972 #Su= 1189 avg 1174 1230 1163 #eu= 0. #not reported #E= 178000 mpa taken from literature #FractureStrain= 0.315 from %RA #FractureStress= 0 not reported #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 353 converted from Su #%RA= 27 % #StrAmpl 2Nf StsAmpl So PlasStrAmpl EMod #heat-1 0.02447 226 1198 0 0.01913 178000 0.01505 524 1048 0 0.00886 178000 0.01527 570 1116 0 0.00855 178000 0.01014 1806 945 0 0.00485 178000 0.00502 8746 745 0 0.00080 178000 0.00443 15840 810 0 0.00043 178000 0.00390 34419 658 0 0.00009 178000 0.00406 37371 680 0 0.00002 178000 0.00400 76900 658 0 0.00006 178000 0.00333 462640 593 0 0.00000 178000 #heat-2 0.01935 292 1214 0 0.01221 178000 0.01480 798 1072 0 0.00831 178000 0.00990 2022 969 0 0.00385 178000 0.00660 4452 967 0 0.00234 178000 0.00564 8262 874 0 0.00151 178000 0.00487 11824 812 0 0.00110 178000 0.00444 27296 801 0 0.00030 178000 0.00344 374800 781 0 0.00015 178000 0.00302 463040 717 0 0.00010 178000 #runout #heat-3 0.00995 1434 891 0 0.00515 178000 0.00499 7898 712 0 0.00080 178000 0.00502 14568 756 0 0.00069 178000 0.00404 23440 661 0 0.00010 178000 0.00342 46232 669 0 0.00007 178000 0.00358 48398 676 0 0.00002 178000 # #