TY - JOUR
T1 - Nanostructured FeNiZrB powders synthesized by high-energy ball milling
T2 - structural and hyperfine characterizations
AU - Peña Rodríguez, V. A.
AU - Medina Medina, J.
AU - Rojas-Ayala, C.
AU - Paucar Cabrera, P.
AU - Landauro, C. V.
AU - Quispe-Marcatoma, J.
AU - Rojas Tapia, J.
AU - Baggio-Saitovitch, E. M.
AU - Passamani, E. C.
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
PY - 2021/12
Y1 - 2021/12
N2 - Nanostructured (Fe0.5Ni0.5)92Zr5B3 alloy was prepared by milling a blend of pre-alloyed Fe50Ni50 precursor and high purity chemical elemental powders of Zr and B in a high-energy ball mill setup. Rietveld refinement of the X-ray diffraction pattern of the final sample (30 h of milling) revealed presence of two Fe–Ni rich phases [disordered fcc γ–(Fe,Ni) alloy with Zr and B and the atomically ordered FeNi] with grain sizes in nanometer scale. Fe and Ni atoms were locally probed using extended X-ray absorption fine structure EXAFS and 57Fe Mössbauer spectroscopy. Whilst EXAFS analysis of milled samples suggested structural properties similar to the pre-alloyed precursor, Mössbauer data have shown the Fe2B phase formation after 3 h of milling, suggesting that the final material consists of nanograins of ordered FeNi (8%) and Fe2B (6%) phases dispersed in solid solution of γ–(Fe,Ni) alloy rich in nickel (86%) with Zr and B atoms impregnated in grain boundary defects.
AB - Nanostructured (Fe0.5Ni0.5)92Zr5B3 alloy was prepared by milling a blend of pre-alloyed Fe50Ni50 precursor and high purity chemical elemental powders of Zr and B in a high-energy ball mill setup. Rietveld refinement of the X-ray diffraction pattern of the final sample (30 h of milling) revealed presence of two Fe–Ni rich phases [disordered fcc γ–(Fe,Ni) alloy with Zr and B and the atomically ordered FeNi] with grain sizes in nanometer scale. Fe and Ni atoms were locally probed using extended X-ray absorption fine structure EXAFS and 57Fe Mössbauer spectroscopy. Whilst EXAFS analysis of milled samples suggested structural properties similar to the pre-alloyed precursor, Mössbauer data have shown the Fe2B phase formation after 3 h of milling, suggesting that the final material consists of nanograins of ordered FeNi (8%) and Fe2B (6%) phases dispersed in solid solution of γ–(Fe,Ni) alloy rich in nickel (86%) with Zr and B atoms impregnated in grain boundary defects.
KW - Extended X-ray absorption fine structure
KW - High energy ball milling
KW - Hyperfine interactions
KW - Nanostructured materials
KW - Tetrataenite
UR - http://www.scopus.com/inward/record.url?scp=85118793182&partnerID=8YFLogxK
U2 - 10.1007/s10751-021-01758-y
DO - 10.1007/s10751-021-01758-y
M3 - Artículo
AN - SCOPUS:85118793182
SN - 0304-3843
VL - 242
JO - Hyperfine Interactions
JF - Hyperfine Interactions
IS - 1
M1 - 27
ER -