Comparative study of conventionally sintered Co-Ni-Al alloy with spark plasma sintered alloy | Zendy

Arputhavalli Johnsy | Zendy; S. Agilan | Zendy; M. Dinesh | Zendy; S.J. Vijay | Zendy; Roy Johnson | Zendy

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Comparative study of conventionally sintered Co-Ni-Al alloy with spark plasma sintered alloy

Author(s) -

Arputhavalli Johnsy,

S. Agilan,

M. Dinesh,

S.J. Vijay,

Roy Johnson

Publication year - 2018

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1803337j

Subject(s) - materials science , alloy , spark plasma sintering , microstructure , tribometer , coercivity , metallurgy , ductility (earth science) , phase (matter) , composite material , creep , tribology , chemistry , organic chemistry , condensed matter physics , physics

Co-Ni-Al alloy samples were prepared by compacting the powdered alloy at various pressures in proper stoichiometric ratio and the high density compacted alloy was sintered at 673 K. The magnetic, mechanical properties, microstructure and phase analysis were studied and compared with that of spark plasma sintered (SPS) alloy. The sintered alloy exhibit martensitic twin variants with β phase structure. Along with the diffused particle, few agglomerated clusters were observed on the topographic images. The magnetic and the mechanical studies of the test specimens were investigated using the vibrating sample magnetometer, pin on disk tribometer and universal testing machine respectively. The coercivity value and the ductility of the SPS alloy are higher than the same of the as-sintered alloy.

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