Quantifying Grain Level Stress-Strain Behavior for AM40 via Instrumented Microindentation

  • PDF / 610,630 Bytes
  • 12 Pages / 432 x 648 pts Page_size
  • 46 Downloads / 174 Views

DOWNLOAD

REPORT


4XDQWLI\LQJ*UDLQ/HYHO6WUHVV6WUDLQ%HKDYLRUIRU$0 YLD,QVWUXPHQWHG0LFURLQGHQWDWLRQ  *XDQJ&KHQJ(ULQ,%DUNHU(OL]DEHWK96WHSKHQV.\RR6LO&KRLDQG;LQ6XQ  $GYDQFHG&RPSXWDWLRQDO0DWKHPDWLFVDQG'DWD'LYLVLRQ(QHUJ\3URFHVVHVDQG0DWHULDOV 'LYLVLRQ3DFLILF1RUWKZHVW1DWLRQDO/DERUDWRU\%DWWHOOH%RXOHYDUG5LFKODQG:$ 86$  $%675$&7  0LFURLQGHQWDWLRQLVSHUIRUPHGRQKRWLVRVWDWLFSUHVVHG +,3 0J$O $0 DOOR\ VDPSOHVSURGXFHGE\KLJKSUHVVXUHGLHFDVW +3'& SURFHVVIRUWKHSXUSRVHRITXDQWLI\LQJWKH PHFKDQLFDOSURSHUWLHVRIWKHα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μP ,QUHFHQWUHVHDUFKQDQRLQGHQWDWLRQDQGDQHZO\GHYHORSHGLQYHUVHPHWKRGVXFFHVVIXOO\ H[WUDFWHGSURSHUWLHVIRUVHSDUDWHSKDVHVRIDFRPSOH[TXHQFKLQJDQGSDUWLWLRQLQJ 43 VWHHO>@ 7KHWKUHHVWHSPHWKRGZDVSURSRVHGWRH[WUDFWDSRZHUODZIRUPIO