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|Type:||Artigo de periódico|
|Title:||Identification of the mechanism-limiting nitrogen diffusion in metallic alloys by in situ photoemission electron spectroscopy|
|Abstract:||In situ photoemission electron spectroscopy is used to identify the mechanism limiting the thermally activated nitrogen diffusion in metallic alloys. The samples were prepared by bombarding stainless steel with a broad ion source in a high-vacuum chamber. The photoemission spectra evolution on increasing controlled oxygen partial pressure is correlated with bulk material properties. The presence of oxygen inhibits the formation of iron nitrides and gamma(N)-phase (austenitic face-centered-cubic lattice containing nitrogen), which proved to be fundamental for efficient nitrogen penetration in the alloy. (C) 2003 American Institute of Physics.|
|Editor:||Amer Inst Physics|
|Citation:||Journal Of Applied Physics. Amer Inst Physics, v. 94, n. 8, n. 5435, n. 5437, 2003.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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