Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process
Mechanical ball milling assisted by sintering in the solid state was used in this research to produce the Zn-Nix system alloy. The derivative powder compositions of Zn-Nix (x = 0, 5, 10, 15, and 20 wt.%) were obtained to study the Ni effects on the microstructural and mechanical properties. It is wo...
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2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/7967848 |
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| author | José G. Miranda-Hernández Héctor Herrera-Hernández Carlos O. González-Morán Jesús Noé Rivera Olvera Ivanovich Estrada-Guel Fabián Botello Villa |
| author_facet | José G. Miranda-Hernández Héctor Herrera-Hernández Carlos O. González-Morán Jesús Noé Rivera Olvera Ivanovich Estrada-Guel Fabián Botello Villa |
| author_sort | José G. Miranda-Hernández |
| collection | DOAJ |
| description | Mechanical ball milling assisted by sintering in the solid state was used in this research to produce the Zn-Nix system alloy. The derivative powder compositions of Zn-Nix (x = 0, 5, 10, 15, and 20 wt.%) were obtained to study the Ni effects on the microstructural and mechanical properties. It is worth remarking that conventional methods are not appropriate for the manufacture of the Zn-Nix system alloy. The morphological structure and phases were examined by optical microscopy, X-ray diffraction, and SEM/EDS elemental mapping, whereas the mechanical behavior was accomplished by means of a diamond indentation print (Hardness Vickers). The results showed that the intermetallic γ-ZnNi phase did not form during milling time (<4 h); it appears after the sintering process, which is associated with atomic diffusion mechanism through grain boundary at the minimum interfacial energy (ΔG256°C = −13.83 kJ·mol−1). The powder Zn-Ni10 was found to have better properties. Semispherical coarser particles were seen into the metal matrix (Zn δ-hcp structure) as segregates; however, each particle contains an intermetallic compound Zn-Ni that encloses the Ni (α-fcc structure) pure phase. The Ni-α phase was then transformed into a γ-ZnNi intermetallic compound which shifts to higher values of mechanical hardness from about 60 HV to 400 HV units. |
| format | Article |
| id | doaj-art-ae17f77b9e2d4672b5401c19ff0375e6 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
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| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-ae17f77b9e2d4672b5401c19ff0375e62025-08-20T03:38:59ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/79678487967848Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State ProcessJosé G. Miranda-Hernández0Héctor Herrera-Hernández1Carlos O. González-Morán2Jesús Noé Rivera Olvera3Ivanovich Estrada-Guel4Fabián Botello Villa5Universidad Autónoma del Estado de México, Centro Universitario UAEM Valle de México, Laboratorio de Investigación y Desarrollo de Materiales Industriales, 54500 Atizapán de Zaragoza, MEX, MexicoUniversidad Autónoma del Estado de México, Centro Universitario UAEM Valle de México, Laboratorio de Investigación y Desarrollo de Materiales Industriales, 54500 Atizapán de Zaragoza, MEX, MexicoUniversidad Autónoma del Estado de México, Centro Universitario UAEM Valle de México, Laboratorio de Investigación y Desarrollo de Materiales Industriales, 54500 Atizapán de Zaragoza, MEX, MexicoTecnológico de Estudios Superiores de Ixtapaluca, 56580 Ixtapaluca, MEX, MexicoCentro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, 31136 Chihuahua, CHIH, MexicoUniversidad Autónoma del Estado de México, Centro Universitario UAEM Valle de México, Laboratorio de Investigación y Desarrollo de Materiales Industriales, 54500 Atizapán de Zaragoza, MEX, MexicoMechanical ball milling assisted by sintering in the solid state was used in this research to produce the Zn-Nix system alloy. The derivative powder compositions of Zn-Nix (x = 0, 5, 10, 15, and 20 wt.%) were obtained to study the Ni effects on the microstructural and mechanical properties. It is worth remarking that conventional methods are not appropriate for the manufacture of the Zn-Nix system alloy. The morphological structure and phases were examined by optical microscopy, X-ray diffraction, and SEM/EDS elemental mapping, whereas the mechanical behavior was accomplished by means of a diamond indentation print (Hardness Vickers). The results showed that the intermetallic γ-ZnNi phase did not form during milling time (<4 h); it appears after the sintering process, which is associated with atomic diffusion mechanism through grain boundary at the minimum interfacial energy (ΔG256°C = −13.83 kJ·mol−1). The powder Zn-Ni10 was found to have better properties. Semispherical coarser particles were seen into the metal matrix (Zn δ-hcp structure) as segregates; however, each particle contains an intermetallic compound Zn-Ni that encloses the Ni (α-fcc structure) pure phase. The Ni-α phase was then transformed into a γ-ZnNi intermetallic compound which shifts to higher values of mechanical hardness from about 60 HV to 400 HV units.http://dx.doi.org/10.1155/2017/7967848 |
| spellingShingle | José G. Miranda-Hernández Héctor Herrera-Hernández Carlos O. González-Morán Jesús Noé Rivera Olvera Ivanovich Estrada-Guel Fabián Botello Villa Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process Advances in Materials Science and Engineering |
| title | Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process |
| title_full | Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process |
| title_fullStr | Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process |
| title_full_unstemmed | Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process |
| title_short | Synthesis and Characterization of Zn-Nix Advanced Alloys Prepared by Mechanical Milling and Sintering at Solid-State Process |
| title_sort | synthesis and characterization of zn nix advanced alloys prepared by mechanical milling and sintering at solid state process |
| url | http://dx.doi.org/10.1155/2017/7967848 |
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