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

Abstract

Abstract: 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.

Key words: magnesium, IN100, phase interface segregation

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. PHASE INTERFACE SEGREGATION OF Mg IN A Ni-BASE SUPERALLOY IN100[J]. Acta Metallurgica Sinica (English Letters), 1989, 2(6): 408-411.

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

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