Defect production by near-surface displacement cascades in Ni3Al
作者： F. Gao , D. J. Bacon
DOI: 10.1080/01418619708223746
关键词: Displacement (vector) 、 Recoil 、 Molecular physics 、 Metal 、 Cubic crystal system 、 Surface (mathematics) 、 Materials science 、 Atom 、 Cascade 、 Vacancy defect 、 Crystallography
摘要: Abstract Computer simulations have shown that a nearby surface can engender significant increase in the number of vacancy defects produced by high-energy displacement cascades metals cubic crystal structure. In present work, influence on production lattice bulk up to 10 keV energy α-Zr has been studied. The basal- or prism-plane surfaces were considered, with direction primary recoil atom making either high low angle normal. This hcp metal is interest because self-interstitials migrate preferentially along basal planes, and so crystallographic orientation final defect state cascade damage. Surface subsurface damage increases increasing energy. much larger for surface. Whereas stable interstitial are more readily generated below basal-plane surface, they deposited at greater depth bel...
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