Microstructural and Morphological Properties of AlNiCo and CoNi Alloys: An In-Depth Study Based on Low-Energy Mechanical Alloying
Gilberto Cruz Nieto,
Jesús Noé Rivera Olvera,
Sebastián Díaz de la Torre,
Vicente Garibay Febles,
Jesús Palacios Gómez,
Leonardo Gonzalez Reyes,
Lucía Graciela Diaz Barriga Arceo
Affiliations
Gilberto Cruz Nieto
UPALM Escuela Superior de Ingeniería Química e Industrias Extractivas, Instituto Politécnico Nacional, Edif. 8, Avenida IPN S/N, Zacatenco, Mexico City 07738, Mexico
Jesús Noé Rivera Olvera
Tecnológico Nacional de México, Campus Ixtapaluca, TESI, Km 7 Carretera Ixtapaluca-Coatepec, Ixtapaluca 56580, Mexico
Sebastián Díaz de la Torre
CITEC, IPN, Cerrada de Cecati S/N, Col. Santa Catarina, Azcapotzalco, Mexico City 02250, Mexico
Vicente Garibay Febles
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Norte 152, San Bartolo Atepehuacán, Ciudad de México 07730, Mexico
Jesús Palacios Gómez
UPALM, Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Edif. 9, Avenida IPN S/N, Zacatenco, Mexico City 07738, Mexico
Leonardo Gonzalez Reyes
Departamento de Ciencias Básicas, Universidad Autónoma Metropolitana-A, Av. Sn. Pablo No. 180, Mexico City 02200, Mexico
Lucía Graciela Diaz Barriga Arceo
UPALM Escuela Superior de Ingeniería Química e Industrias Extractivas, Instituto Politécnico Nacional, Edif. 8, Avenida IPN S/N, Zacatenco, Mexico City 07738, Mexico
This study focused on synthesizing AlNiCo and CoNi materials using a low-energy milling process. The aim was to explore the formation of low-energy phases in both systems, contrasting with the typical research on phases formed under high-energy conditions. In the Co-20 wt% Ni system, the phases Co0.75Ni0.25 and Ni were identified, as well as the FCC cubic phase of CoNi, using X-ray diffraction (XRD) with a molybdenum radiation source. The observed behavior aligned closely with the miscibility curve in the equilibrium phase diagram, which included a region of alloys with varying structures and similar compositions. A notable feature was the presence of a predominantly dispersed hexagonal Ni zone, consisting of nanoparticles. Transmission electron microscopy (TEM) was employed to observe the FCC CoNi phase, which displayed a specific arrangement. AlNiCo and CoNi alloys were successfully synthesized through mechanical alloying, incorporating equilibrium and non-equilibrium phases.
