期刊
ULTRAMICROSCOPY
卷 111, 期 6, 页码 469-472出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultramic.2011.01.027
关键词
Atom probe tomography; Voids; Radiation damage
类别
资金
- United States Government [DE-AC05-00OR22725]
- United States Department of Energy
- Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy
- ORNL
- Office of Basic Energy Sciences, US Department of Energy
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0856199] Funding Source: National Science Foundation
A combination of simulated and experimental data has been used to investigate the size range of nanovoids that can be detected in atom probe tomography data. Simulated atom probe tomography data have revealed that nanovoids as small as 1 nm in diameter can be detected in atom probe tomography data with the use of iso-density surfaces. Iso-density surfaces may be used to quantify the size, morphology and number density of nanovoids and other variations in density in atom probe tomography data. Experimental data from an aluminum-yttrium-iron metallic glass ribbon have revealed the effectiveness of this approach. Combining iso-density surfaces with atom maps also permits the segregation of solute to the nanovoids to be investigated. Field ion microscopy and thin section atom maps have also been used to detect pores and larger voids. Published by Elsevier B.V.
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