Comparative study of conventionally sintered Co-Ni-Al alloy with spark plasma sintered alloy
| Autor: | S. J. Vijay, Santhanam Agilan, M. Dinesh, Roy Johnson, G. Johnsy Arputhavalli |
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| Rok vydání: | 2018 |
| Předmět: |
ferromagnetic shape memory alloy
Materials science Alloy 02 engineering and technology engineering.material lcsh:Chemical technology Materials Chemistry lcsh:TP1-1185 Ductility high ductility Universal testing machine 020502 materials Metallurgy Metals and Alloys Coercivity 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure crystalline structure 0205 materials engineering Martensite β+γ martensite phase Ceramics and Composites engineering Particle 0210 nano-technology spark plasma sintering Tribometer |
| Zdroj: | Science of Sintering, Vol 50, Iss 3, Pp 337-345 (2018) |
| ISSN: | 1820-7413 0350-820X |
| DOI: | 10.2298/sos1803337j |
| Popis: | 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 ? 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. |
| Databáze: | OpenAIRE |
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