APFIM-TEM CHARACTERIZATION OF PRECIPITATION IN ALLOY 718Reportar como inadecuado




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Abstract : The combined techniques of atom probe field-ion microscopy and transmission electron microscopy have been used to characterize the microstructure of Alloy 718, a γ- and γ- strengthened nickel-base superalloy. The effect of heat treatment on precipitation has been studied. The morphology, crystal structure, and distribution of the phases have been identified by transmission electron microscopy and the chemistries of the γ- and γ- precipitates have been measured with the atom probe. The results show a wide variation in the composition of these precipitates which is dependent upon aging treatment.





Autor: M. Burke M. Miller

Fuente: https://hal.archives-ouvertes.fr/



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