Site selectivity in Fe doped β phase NiAl

Patrick Chartier; Mahalingam Balasubramanian; Dale Brewe; Tariq Manzur; Douglas Pease; Joseph Budnick; Li Huang; Chi Law; Scott Russell; Clyde Kimball

doi:10.1063/1.356063

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32 Scopus citations

Abstract

We have investigated site selectivity in iron doped β phase ternary alloys of the composition Ni_xFe_yAl_(100-x-y), where the Ni concentration is within a few at. % of stoichiometry. Experimental techniques used include extended x-ray absorption edge fine structure and Mössbauer measurements. The transition metal atoms in excess of 50 at. %, which occupy sites with transition metal nearest neighbors, are not chosen randomly among Ni and Fe, but are exclusively Fe, to within the accuracy of the measurements. This result requires a re-analysis of previous magnetic susceptibility measurements on this system, which as re-analyzed here imply more reasonable moment values for the Fe dopants. Our findings regarding Fe site selectivity are of significance in regards to recent studies showing a ductilization effect of Fe dopants microalloyed into Ni₅₀Al ₅₀.

Original language	English
Pages (from-to)	3842-3846
Number of pages	5
Journal	Journal of Applied Physics
Volume	75
Issue number	8
DOIs	https://doi.org/10.1063/1.356063
State	Published - 1994
Externally published	Yes

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@article{76e877598a7f464dadc98cd8c196150b,

title = "Site selectivity in Fe doped β phase NiAl",

abstract = "We have investigated site selectivity in iron doped β phase ternary alloys of the composition NixFeyAl(100-x-y), where the Ni concentration is within a few at. \% of stoichiometry. Experimental techniques used include extended x-ray absorption edge fine structure and M{\"o}ssbauer measurements. The transition metal atoms in excess of 50 at. \%, which occupy sites with transition metal nearest neighbors, are not chosen randomly among Ni and Fe, but are exclusively Fe, to within the accuracy of the measurements. This result requires a re-analysis of previous magnetic susceptibility measurements on this system, which as re-analyzed here imply more reasonable moment values for the Fe dopants. Our findings regarding Fe site selectivity are of significance in regards to recent studies showing a ductilization effect of Fe dopants microalloyed into Ni50Al 50.",

author = "Patrick Chartier and Mahalingam Balasubramanian and Dale Brewe and Tariq Manzur and Douglas Pease and Joseph Budnick and Li Huang and Chi Law and Scott Russell and Clyde Kimball",

year = "1994",

doi = "10.1063/1.356063",

language = "English",

volume = "75",

pages = "3842--3846",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "8",

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TY - JOUR

T1 - Site selectivity in Fe doped β phase NiAl

AU - Chartier, Patrick

AU - Balasubramanian, Mahalingam

AU - Brewe, Dale

AU - Manzur, Tariq

AU - Pease, Douglas

AU - Budnick, Joseph

AU - Huang, Li

AU - Law, Chi

AU - Russell, Scott

AU - Kimball, Clyde

PY - 1994

Y1 - 1994

N2 - We have investigated site selectivity in iron doped β phase ternary alloys of the composition NixFeyAl(100-x-y), where the Ni concentration is within a few at. % of stoichiometry. Experimental techniques used include extended x-ray absorption edge fine structure and Mössbauer measurements. The transition metal atoms in excess of 50 at. %, which occupy sites with transition metal nearest neighbors, are not chosen randomly among Ni and Fe, but are exclusively Fe, to within the accuracy of the measurements. This result requires a re-analysis of previous magnetic susceptibility measurements on this system, which as re-analyzed here imply more reasonable moment values for the Fe dopants. Our findings regarding Fe site selectivity are of significance in regards to recent studies showing a ductilization effect of Fe dopants microalloyed into Ni50Al 50.

AB - We have investigated site selectivity in iron doped β phase ternary alloys of the composition NixFeyAl(100-x-y), where the Ni concentration is within a few at. % of stoichiometry. Experimental techniques used include extended x-ray absorption edge fine structure and Mössbauer measurements. The transition metal atoms in excess of 50 at. %, which occupy sites with transition metal nearest neighbors, are not chosen randomly among Ni and Fe, but are exclusively Fe, to within the accuracy of the measurements. This result requires a re-analysis of previous magnetic susceptibility measurements on this system, which as re-analyzed here imply more reasonable moment values for the Fe dopants. Our findings regarding Fe site selectivity are of significance in regards to recent studies showing a ductilization effect of Fe dopants microalloyed into Ni50Al 50.

UR - https://www.scopus.com/pages/publications/36449009328

U2 - 10.1063/1.356063

DO - 10.1063/1.356063

M3 - Article

AN - SCOPUS:36449009328

SN - 0021-8979

VL - 75

SP - 3842

EP - 3846

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

ER -

Site selectivity in Fe doped β phase NiAl

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