Experimental investigation of nanomechanical response from synergistic metal alloy fusion of Cu-Al-Zn-Sn for anti-corrosion and structural application

One challenge in developing new materials is solid metal-induced embrittlement, where the fracture stress or ductility of the metal decreases upon contact with another metal surface. Materials such as aluminium demand precise temperature control for optimal results, often requiring specialized equip...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2024-06, Vol.132 (11-12), p.5621-5632
Main Authors: Ayuba, Samuel U., Fayomi, Ojo S. I., Omotosho, Olugbenga A.
Format: Article
Language:English
Subjects:
Alloying
Alloys
Aluminum base alloys
CAE) and Design
Cold rolling
Cold working
Computer-Aided Engineering (CAD
Contact stresses
Control equipment
Copper
Corrosion
Corrosion currents
Corrosion prevention
Corrosion rate
Corrosion resistance
Diamond pyramid hardness
Engineering
Heat treatment
High entropy alloys
Industrial and Production Engineering
Mechanical Engineering
Mechanical properties
Media Management
Metal surfaces
Original Article
Temperature control
Thermal stability
Tribology
Wear rate
Wire drawing
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Summary:One challenge in developing new materials is solid metal-induced embrittlement, where the fracture stress or ductility of the metal decreases upon contact with another metal surface. Materials such as aluminium demand precise temperature control for optimal results, often requiring specialized equipment. Strengthening aluminium alloys often involves cold working techniques like wire drawing or cold rolling. By combining methods such as cold working, heat treatment, and most especially alloying, the mechanical properties of aluminium alloys can be optimized. To address these concerns, an experimental study investigated the nanomechanical response of an alloy developed for anti-corrosion and structural applications. Corrosion behaviour was evaluated in a 3.65 wt% NaCl solution using a potentiostat/galvanostat, while tribological performance was assessed using a reciprocating sliding tribometer. Microhardness properties were studied using a Vickers microindenter, and thermal stability was examined using a thermo-gravimetric analyzer. Structural modifications were analysed using SEM/EDX and X-ray diffractometer (XRD). Results showed that the HEA (high entropy alloy) 17 sample exhibited outstanding corrosion resistance, with a corrosion rate (CR) of 0.0639 mm/year and corrosion current density (jcorr) of 5.500E−06 A/cm 2 . All HEA samples displayed high wear rates and worn track sections compared to CONTROL 2. The HEA 16 and HEA 18 samples demonstrated notably high Vickers hardness of 534.50 µN/mm 2 and 533.48 µN/mm 2 , respectively. Despite its high copper content, the CONTROL 1 sample did not exhibit comparable hardness. SEM images revealed refined microstructures and distinct outer morphologies in the examined samples.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-024-13669-7