Analysis of precipitate structure in a Cu-Ni-P alloy

The precipitates responsible for the age-hardening effect in Cu-0.89 wt.% Ni-0.22 wt.% P alloy have been studied using TEM. The precipitates are rod-shaped Ni sub 2 P, which has a hexagonal C22 crystal structure, and their maximum growth directions are parallel to < 112 > sub m . The orientati...

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Bibliographic Details
Published in:Scripta materialia 2000-03, Vol.42 (7), p.637-643
Main Authors: Byun, Jung-Soo, Choi, Joon Hwan, Lee, Dong Nyung
Format: Article
Language:English
Subjects:
Aging
Applied sciences
Copper alloy
Cross-disciplinary physics: materials science
rheology
Crystal structure
Exact sciences and technology
Materials science
Metals. Metallurgy
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Phosphide
Physics
Precipitation
Solid-phase precipitation
Transmission electron microscopy (TEM)
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Summary:The precipitates responsible for the age-hardening effect in Cu-0.89 wt.% Ni-0.22 wt.% P alloy have been studied using TEM. The precipitates are rod-shaped Ni sub 2 P, which has a hexagonal C22 crystal structure, and their maximum growth directions are parallel to < 112 > sub m . The orientation relationships between the matrix and precipitate exist and one of the variants of them can be represented as follows. [110] sub m //[1010] sub p and (112) sub m //(1212) sub p .
ISSN:1359-6462
1872-8456
DOI:10.1016/S1359-6462(99)00405-4