TITLE:
Effect of Heat Treatment on the Mechanical and Electrical Properties of Al-Co-Mn Alloys
AUTHORS:
Isaí Rosales-Cadena, Rene Guardian-Tapia, Jose G. Pereyra-Hernández, Juan Antonio Ruiz-Ochoa
KEYWORDS:
Aluminum Alloys, Microstructure, Mechanical Properties, Electrical Properties, Energy
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.13 No.3,
May
30,
2025
ABSTRACT: 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∙m1/2 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.