Microstructure and Wear Characteristics of Nano Y2O3 Particles Reinforced A356 Alloy Composites Synthesized Through Novel Ultrasonic Assisted Stir Casting Technique

In this research, Y 2 O 3 nano particles were dispersed into Aluminum A356 via ultrasonic assisted stir casting route. Microstructural analysis confirmed that ultrasonic aided synthesis significantly helped in homogenous dispersion of particles; excellent bonding between matrix and reinforcement and...

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Bibliographic Details
Published in:Transactions of the Indian Institute of Metals 2022-02, Vol.75 (2), p.417-426
Main Authors: Satish Kumar, T., Nampoothiri, Jayakrishnan, Shalini, S., Thankachan, Titus
Format: Article
Language:English
Subjects:
Abrasion
Aluminum base alloys
Chemistry and Materials Science
Corrosion and Coatings
Deformation wear
Frictional wear
Materials Science
Metallic Materials
Microstructural analysis
Microstructure
Nanoparticles
Original Article
Oxidation
Particulate composites
Plastic deformation
Sliding friction
Tribology
Ultrasonic processing
Wear mechanisms
Wear rate
Yttrium oxide
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Summary:In this research, Y 2 O 3 nano particles were dispersed into Aluminum A356 via ultrasonic assisted stir casting route. Microstructural analysis confirmed that ultrasonic aided synthesis significantly helped in homogenous dispersion of particles; excellent bonding between matrix and reinforcement and at the same time significantly refined the dendritic microstructure. Addition of nano Y 2 O 3 particles and ultrasonic treatment had a tremendous impact on the hardness of developed composites. Sliding wear characteristics of the developed composites were investigated under varying sliding speeds and loads. Wear test results confirmed that addition of nano Y 2 O 3 particles comprehensively decreased the A356 alloy wear rate, and SEM analysis of the worn out samples revealed delamination, oxidation and abrasion, plastic deformation wear to be the predominant wear mechanisms.
ISSN:0972-2815
0975-1645
DOI:10.1007/s12666-021-02424-1