Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - X-ray Analysis of Short-Range Order in Iron–Gallium Solid Solutions
AU - Chernenkov, Yu. P.
AU - Ershov, N. V.
AU - Gornostyrev, Yu. N.
AU - Lukshina, V. A.
AU - Smirnov, O. P.
AU - Shishkin, D. a.
N1 - The work is supported by the Russian Science Foundation, project no. 22-12-00179.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - The atomic structure of single crystal specimens of Fe-Ga alloys containing 4, 9, and 18 at % gallium has been studied by the X-ray diffraction method. The specimens were heat treated via two modes: annealing in paramagnetic state with subsequent quenching in water and annealing in ferromagnetic state with slow cooling to room temperature. Analysis of X-ray diffraction patterns indicates that the short-range order of the D0(3) type is formed in the alloy with 18 at % gallium; moreover the volume fraction of regions of the D0(3) phase considerably increases upon annealing. In the alloys with 4 and 9 at % gallium, the short-range order of the D0(3) type is absent. For all compositions, near the nodes (001), (003), and (111) we observe diffuse peaks whose intensities are independent of the heat treatment mode. It is shown that their appearance is related to the presence of small clusters of B2 type. The role of the observed structural peculiarities in the formation of magnetoelastic properties of Fe-Ga alloys is discussed.
AB - The atomic structure of single crystal specimens of Fe-Ga alloys containing 4, 9, and 18 at % gallium has been studied by the X-ray diffraction method. The specimens were heat treated via two modes: annealing in paramagnetic state with subsequent quenching in water and annealing in ferromagnetic state with slow cooling to room temperature. Analysis of X-ray diffraction patterns indicates that the short-range order of the D0(3) type is formed in the alloy with 18 at % gallium; moreover the volume fraction of regions of the D0(3) phase considerably increases upon annealing. In the alloys with 4 and 9 at % gallium, the short-range order of the D0(3) type is absent. For all compositions, near the nodes (001), (003), and (111) we observe diffuse peaks whose intensities are independent of the heat treatment mode. It is shown that their appearance is related to the presence of small clusters of B2 type. The role of the observed structural peculiarities in the formation of magnetoelastic properties of Fe-Ga alloys is discussed.
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000911435300006
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85146671405
U2 - 10.1134/S0031918X22600944
DO - 10.1134/S0031918X22600944
M3 - Article
VL - 123
SP - 987
EP - 995
JO - Physics of Metals and Metallography
JF - Physics of Metals and Metallography
SN - 0031-918X
IS - 10
ER -
ID: 33972917