Author(s)

Isaí Rosales-Cadena^1*, Rene Guardian-Tapia¹, Jose G. Pereyra-Hernández¹, Juan Antonio Ruiz-Ochoa²

¹Department of Advanced Materials, Center for Research in Engineering and Applied Sciences, Autonomous University of Morelos State, Cuernavaca, Mexico.
²Department of Materials, Faculty of Sciences of the Enginery and Technology, Autonomous University of Baja California, Tijuana, Mexico.

Al-Co-Mn alloys with different atomic percent were synthetized by induction melting technique. Controlled annealing treatment was applied to the resultant alloys under He atmosphere. Different microstructures were produced as a function of the Mn and Co content producing different grain morphologies. Hardness results indicate an increment in approximately 30 percent (150 kg/mm²) in samples with low cobalt and high aluminum; while fracture toughness evaluations present a noticeable increment for these samples of 50 MPa∙m^1/2 which represents an improvement of approximately five times more than sample with higher aluminum content. Electrical conductivity value, higher than 61.8% IACS was obtained in sample with high Co and low Al content. Electrical characterization was developed to observe the alloy performance as anodic element in a primary battery. Results are interpreted considering mainly a substitutional mechanism.

Aluminum Alloys, Microstructure, Mechanical Properties, Electrical Properties, Energy

Rosales-Cadena, I. , Guardian-Tapia, R. , Pereyra-Hernández, J. and Ruiz-Ochoa, J. (2025) Effect of Heat Treatment on the Mechanical and Electrical Properties of Al-Co-Mn Alloys. Journal of Minerals and Materials Characterization and Engineering, 13, 83-93. doi: 10.4236/jmmce.2025.133006.