Clusters in steel Nominal comp.(wt.%):Fe-18Cr-9.3Ni-0.4Nb-0.8Mn-0.2Si-3Cu-0.1C-0.2N Nominal comp.(at.%):67.0Fe-19.0Cr-8.7Ni-0.24Nb-0.80Mn-0.39Si-2.60Cu-0.46C-0.79N Cu 8h 24h 100h Nb C Annealed at 700C Number of particles:75 42 19 Number density:5.5x1024 m3 3.1x1024m-3 1.4x1024m-3 Average composition of particles: 30.2Fe-11.8Cr-5.9Ni-51.4Cu 26.9Fe-8.6Cr-4.8Ni-58.4Cu 28.4Fe-9.0Cr-5.3Ni-56.6Cu This data was obtained using UV laser(wave length:343 nm). ~25x18x30nm3Clusters in steel ~25x18x30nm3 Cu Annealed at 700ºC This data was obtained using UV laser (wave length: 343 nm). 8h 24h 100h Nominal comp.(wt.%): Fe-18Cr-9.3Ni-0.4Nb-0.8Mn-0.2Si-3Cu-0.1C-0.2N Nominal comp.(at.%): 67.0Fe-19.0Cr-8.7Ni-0.24Nb-0.80Mn-0.39Si-2.60Cu-0.46C-0.79N Number of particles: 75 Number density: 5.5x1024 m-3 42 3.1x1024 m-3 19 1.4x1024 m-3 Average composition of particles: 30.2Fe-11.8Cr-5.9Ni-51.4Cu 26.9Fe-8.6Cr-4.8Ni-58.4Cu 28.4Fe-9.0Cr-5.3Ni-56.6Cu Nb C 16