Y-Y Ma et aL/Engineering Failure Analysis 47(2015)162-177 1.002003004005,006.007.008.00900100011.00 Energry. kev MoLa .002003004005.006.007008009.0010.0011.00 Energy.keV (c) 1.002.003.004005006.007008.009.0010.00 Fig. 9. EDS results of the three sites near the cracks origin: (a) site 001, (b)site 002 and (c)site 003 EDS results of the three sites near the crack's origin(wt%). Element Fe 2158 Site 002 Site 003 2202 3.59Fig. 9. EDS results of the three sites near the crack’s origin: (a) site 001, (b) site 002 and (c) site 003. Table 3 EDS results of the three sites near the crack’s origin (wt.%). Element C O Al Si Mo Cr Mn Fe Ni Site 001 1.02 1.33 0.53 4.99 0.59 21.58 0.88 61.28 7.8 Site 002 0.58 0.67 0.37 1.73 0.51 21.95 0.63 65.34 8.22 Site 003 45.61 18.93 – 0.83 0.43 8.19 0.40 22.02 3.59 172 Y.-Y. Ma et al. / Engineering Failure Analysis 47 (2015) 162–177