Journal
PHILOSOPHICAL MAGAZINE LETTERS
Volume 92, Issue 11, Pages 617-624Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500839.2012.704416
Keywords
laser processing; metallic glass; crystallization; nano-crystallization; thermal stress
Categories
Funding
- National Science Foundation [NSF-CMMI 0969249]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0969249] Funding Source: National Science Foundation
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It is shown that laser processing results in localized compressive stresses in amorphous Fe-Si-B, leading to homogeneous nano-crystallization at the edges of the laser track. The mechanism can be attributed to enhanced diffusivity at these edges, resulting from a reduced diffusion activation barrier, which has been calculated by coupling the results of a thermal model with microstructural characterization.
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