Microchemistry studies of ductile L12 Ni-based intermetallics

研究成果: ジャーナルへの寄稿会議記事査読

2 被引用数 (Scopus)

抄録

Auger electron microscopy (AES) analysis of boron doped Ni3Al have shown boron segregation at grain boundary (GB). Boron segregation was enhanced with increasing bulk boron content independent of stoichiometry, suggesting that hypo-stoichiometric alloy is intrinsically ductile even without boron. A slight Ni cosegregation is confirmed using atom probe field ion microscope (APFIM). In Ni3(Si,Ti), no distinct composition fluctuation was identified between matrix and GB vicinity. These results suggest that atomic bonding atmosphere modification from covalent to metallic in the vicinity of GB is one of factors to modify ductility for L12-type intermetallics.

本文言語英語
ページ(範囲)749-754
ページ数6
ジャーナルMaterials Research Society Symposium - Proceedings
364
2
出版ステータス出版済み - 1995
イベントProceedings of the 1994 MRS Fall Meeting - Boston, MA, USA
継続期間: 1994 11月 281994 11月 30

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