Various types of the grain boundaries were identified in intermetallic compound Ni 3 Al polycrystals. Deviations from the stoichiometric composition were determined, and microhardness was measured inside the grains and at grain boundaries. Microhardness near special boundaries is smaller than near r
โฆ LIBER โฆ
The mutual effects of boron, zirconium and aluminium on grain boundary segregation in Ni3Al intermetallic compounds
โ Scribed by T.H Chuang
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 1002 KB
- Volume
- 141
- Category
- Article
- ISSN
- 0921-5093
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A first-principles method is employed to investigate the segregation behaviors of hydrogen and boron in Ni-based and Ni 3 Al-based alloys using two models. Chemical binding energy analysis shows that both boron and hydrogen are able to segregate to the interstices in the Ni phase, Ni 3 Al phase and