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The effect of point defect fluxes on radiation-enhanced diffusion in nickel

 

作者: A.D. Marwick,   R.C. Filler,  

 

期刊: Radiation Effects  (Taylor Available online 1977)
卷期: Volume 33, issue 4  

页码: 245-250

 

ISSN:0033-7579

 

年代: 1977

 

DOI:10.1080/00337577708233113

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Changes in the distribution of Manganese solute in a 99.8% pure nickel crystal after 75 keV Ni+ion bombardment are reported. Irradiations were performed at 23°C and 500°C at a maximum damage rate of 0.046 dpa/s. The depth profiles of solute impurities near the surface were measured by simultaneous sputter-profiling and Secondary Ion Mass Spectrometry. The results are interpreted in terms of a model of the diffusion and interaction of vacancies, divacancies and self-interstitials. Solute redistribution at 500°C and 23°C is found to be due to the effects of di-vacancy and interstitial fluxes respectively. The relationship of the solute profiles to the point defect distributions is discussed.

 

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