Abstract
The paper presents neutron diffraction analysis and X-ray investigation of ordered alloys Ni3(Mn,Ti) within the concentration range from 0 to 12.5 at.% Ti. The significant effect of the third alloying element Ti on the atomic long-range order was observed in superstructure L12 of alloy Ni3Mn. Experimental study has showed that a rapid quenching in ice water does not provide disordered Ni3(Mn,Ti) alloys. The two-phase region of internmetallic bonds was detected in compounds L12 and D024. The paper presents results estimation of electrical resistivity, normal and abnormal values of hall coefficient, Nernst–Ettingshausen effect, thermal electromotive force, and average atomic magnetic moment in quenched and annealed Ni3(Mn,Ti) alloys. Positive values of abnormal hall coefficient and Nernst–Ettingshausen effect were detected that confirms the predominant contribution of antiparallel spin 3d holes in conductivity. It is shown that in 2.2 at.% annealed Ti alloys ordering promotes 3d electron localization.
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