Effect of isoelectronic substitution on phase transition and magnetic properties of Ni{sub 57}Mn{sub 18}Ga{sub 25−x}In{sub x} (0 ≤ x ≤ 8) alloys with Ni excess

Journal Article · Tue Apr 21 04:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4916804· OSTI ID:22402866

Liu, Jinghua; Wang, Jingmin; Zhang, Linfang; Wang, Xiao; Hua, Hui; Jiang, Chengbao ^[1]

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1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191 (China)

Effect of isoelectronic substitution of In for Ga on the phase transition and magnetic properties was studied in Ni{sub 57}Mn{sub 18}Ga{sub 25−x}In{sub x} (0 ≤ x ≤ 8) alloys. With the increasing In content, the room-temperature phase structure evolved from tetragonal martensite to cubic austenite. The martensitic transformation temperatures were significantly decreased by the substitution of In for Ga, but the austenitic Curie temperature was only slightly decreased. Especially, both thermal and isothermal magnetization measurements revealed that the Curie temperature and saturation magnetization of the martensite were independent on the isoelectronic substitution. The results were discussed by considering the phase structures and the atomic interactions.

• OSTI ID: 22402866
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 15 Vol. 117; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUSTENITE
AUSTENITIC STEELS
CONCENTRATION RATIO
CURIE POINT
GALLIUM ALLOYS
INDIUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANESE ALLOYS
MARTENSITE
NICKEL BASE ALLOYS
PHASE TRANSFORMATIONS
TEMPERATURE RANGE 0273-0400 K