The orientation relationship of {alpha}-Co precipitates in melt-spun Cu{sub 70}Co{sub 30}

Journal Article · Thu May 01 00:00:00 EDT 1997 · Materials Research Bulletin

DOI:https://doi.org/10.1016/S0025-5408(97)00018-4· OSTI ID:509188

Song, X; Mahon, S W; Cochrane, R F ^[1]

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1. Univ. of Leeds (United Kingdom). School of Materials

A TEM investigation on the orientation relationship of {alpha}-Co precipitates in a copper matrix has revealed that these f.c.c. precipitates, approximately 15--20 nm in diameter, were formed in Cu{sub 70}Co{sub 30} ribbons during melt-spinning. After annealing at 573 K, these precipitates grew to about 30--50 nm in diameter. Analysis of selected area diffraction patterns (SAPD) combined with the dark field imaging technique confirms that the orientation relationship between these {alpha}-Co precipitates and the Cu matrix is not a cube-cube relationship, but a twin-type one, i.e,, {l_brace}111{r_brace}{sub Co}{parallel}{l_brace}111{r_brace}{sub Cu} and <110>{sub Co}{parallel}<110>{sub Cu}.

• OSTI ID: 509188
• Journal Information: Materials Research Bulletin, Vol. 32, Issue 5; Other Information: PBD: May 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MICROSTRUCTURE
COPPER ALLOYS
COBALT ALLOYS
COMPOSITE MATERIALS
INTERMETALLIC COMPOUNDS
PRECIPITATION
ORIENTATION
FCC LATTICES
ANNEALING
NUCLEATION