材料期刊网

PHASE INTERFACE SEGREGATION OF Mg IN A Ni-BASE SUPERALLOY IN100

ZHU Qiang GE Honglin WANG Di CHEN Guoliang University of Science and Technology Beijing , Beijing , China.[Originally published in ACTA METALL SIN(CHINESE EDN)25(3)1989 pp A185—A189 , Dept.of Materials Science and Engineering , University of Science and Technology Beijing , Beijing 100083 , China

金属学报(英文版)

The segregation of Mg to phase interfaces in a nickel base superalloy IN 100 has been investi- gated using EPT(Electron Microprobe Technique).AES(Auger Electron Spectroscopy) and EDS analyses on thin TEM film.The results show that Mg segregates to the phase inter- faces of MC/γ and γ′/γ.The segregation concentration and layer thickness of Mg on MC/γ phase interface are larger than that on γ′/γ phase interface.Mg is not only a grain boundary segregation element,but also a phase interface segregation one.

关键词: magnesium , null , null