Journal
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume 43A, Issue 10, Pages 3423-3427Publisher
SPRINGER
DOI: 10.1007/s11661-012-1318-y
Keywords
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Funding
- United States Department of Energy, Office of Fossil Energy [DE-FG26-06NT42732, DE-09NT0008089]
- USDOE [DE-AC02-06CH11357]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0822838] Funding Source: National Science Foundation
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Ultra-small-angle X-ray scattering (USAXS) is employed to quantify the average size, interparticle spacing, and volume fraction of the primary B2 precipitates in Fe-based superalloys with varying Al concentration. The results are analyzed with a model incorporating polydispersity and interference effects and verified by transmission electron microscopy (TEM) characterizations. As the Al amount increases from 4 to 10 mass pct, there is an approximately 40 pct decrease in the average interparticle spacing and similar to 30 pct reduction in the average particle diameter.
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