<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>AA 2024 alloy has been melted and cast in a permanent cast iron mould in the form of 18 mm Φ fingers. The synthesis of AA2024 alloy − 5wt.% fly ash composite was made by stir cast technique. A uniform distribution of fly ash particles in the matrix phase was obtained. Good bonding between the matrix and reinforcement was also achieved. Dry sliding wear behavior of the alloy and the composite has been investigated using a pin-on-disc wear tester. The investigation was carried out at a fixed sliding velocity of 2.0 m/s, track diameter of 60 mm and load ranging from 0.5 kgf to 1.5 kgf (4.9–14.7 N). SEM studies were carried out to assess the wear behavior of the alloy and the composite. The composite showed better wear resistance than the base alloy for the lower loads. However, for the higher loads and longer sliding distances, the wear in the composite was extensive due to the existence of fractured and dislodged fly ash particles in the alloy matrix.</p></abstract>

AA 2024 alloy has been melted and cast in a permanent cast iron mould in the form of 18 mm Φ fingers. The synthesis of AA2024 alloy − 5wt.% fly ash composite was made by stir cast technique. A uniform distribution of fly ash particles in the matrix phase was obtained. Good bonding between the matrix and reinforcement was also achieved. Dry sliding wear behavior of the alloy and the composite has been investigated using a pin-on-disc wear tester. The investigation was carried out at a fixed sliding velocity of 2.0 m/s, track diameter of 60 mm and load ranging from 0.5 kgf to 1.5 kgf (4.9–14.7 N). SEM studies were carried out to assess the wear behavior of the alloy and the composite. The composite showed better wear resistance than the base alloy for the lower loads. However, for the higher loads and longer sliding distances, the wear in the composite was extensive due to the existence of fractured and dislodged fly ash particles in the alloy matrix.

Dry sliding wear behaviour of fly ash particles reinforced AA 2024 composites

Dept. of Metallurgical Engineering, Andhra University, Visakhapatnam, 530 003, India

Advanced Materials Processing Lab, Dept. of Metallurgical and Materials Engineering, National Institute of Technology, Trichy, 620 015, India

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Dry sliding wear behaviour of fly ash particles reinforced AA 2024 composites"}

AA 2024 alloy has been melted and cast in a permanent cast iron mould in the form of 18 mm Φ fingers. The synthesis of AA2024 alloy − 5wt.% fly ash composite...

Dry sliding wear behaviour of fly ash particles reinforced AA 2024 composites

Publié en ligne: 14 sept. 2012

Pages: 204 - 211

DOI: https://doi.org/10.2478/s13536-012-0026-z

Mots clés
metal-matrix composite, Al-fly ash composites, wear testing, sliding wear, electron microscopy

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Dry sliding wear behaviour of fly ash particles reinforced AA 2024 composites

Publié en ligne: 14 sept. 2012

Pages: 204 - 211

DOI: https://doi.org/10.2478/s13536-012-0026-z

Mots clésmetal-matrix composite, Al-fly ash composites, wear testing, sliding wear, electron microscopy

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
metal-matrix composite, Al-fly ash composites, wear testing, sliding wear, electron microscopy