In this paper, the high resolution electron microscope was used to disclose the vacancy dishes and the structure of interfaces between the two phases γ′ and σ in atomic size. Meanwhile, the orientation relationship between the two phases was determined to be (111)//(0001) and / with the two-phases-interfaces being smooth, straight and coherent. The observation shows that the continuous bombing of high speed ions produces a great amount of vacant site defects. The assembly of vacancies forms vacant dish, and the collapse of vacant dish forms stacking fault tetrahedrons and other crystal defects.
|Number of pages||5|
|Journal||Acta Metallurgica Sinica Series A, Physical Metallurgy & Materials Science|
|Publication status||Published - 1 Dec 1993|
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