The element content at grain boundary of advanced Fe-based superalloy GH871 containing Nb has been studied by Perkin-Elmer PHI 595 Auger spectrometer.

• 利用PERKIN ELMERPHI 5 95型俄歇谱仪研究了新型含铌铁基高温合金GH871的晶界上各元素的含量。