Effect of h-BN solid nano lubricant on the dry sliding wear behaviour of Al-B4C nanocomposites

• Autorzy: Harichandran R. , Selvakumar N.

Identyfikatory

DOI

10.5604/18972764.1223976

• Języki publikacji: EN

Abstrakty

EN

Purpose: In this paper, three composites with different B4C content and fixed h-BN nanoparticles reinforced aluminium composites were fabricated through ultrasonic cavitation assisted casting. The role of the B4C and h-BN nanoparticles content on the mechanical and tribological properties of the aluminium composites was evaluated. This study presents the report on characterizion and evaluation of mechanical properties of h-BN and B4C nanoparticles reinforced aluminium composites. Design/methodology/approach: Al-B4C-h-BN composites are fabricated using stir and ultrasonic cavitation-assisted casting processes. The prepared composites are characterized using X-ray diffraction, Scanning Electron Microscopy and Energy Dispersive Spectroscopy. The dry sliding wear behaviour of the Al-B4C-h-BN composites are investigated using pin-on-disc wear test. Findings: The results of microstructural study reveal that uniform distribution, grain refinement and low porosity in composite specimens. The wear properties of the hybrid nanocomposites, containing 4 wt% B4C and 2 wt. % h-BN, exhibit the superior wear resistance properties as compared to unreinforced aluminium matrix. Practical implications: The interest in use of hexagonal boron nitride nanoparticles (h-BN) as solid nano lubricant for aluminium has been growing considerably due to its self lubricating properties.

Słowa kluczowe

EN

aluminium nanocomposite; B4C; h-BN; nanoparticle; dry sliding; ultrasonic dispersion

PL

nanokompozyt aluminiowy; B4C; h-BN; nanocząstka; tarcie suche; dyspersja ultradźwiękowa

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2016
• Tom: Vol. 77, nr 1
• Strony: 5--11
• Opis fizyczny: BBibliogr. 14 poz.

Twórcy

autor

Harichandran R.

• Department of Mechanical Engineering, National Engineering College, K.R.Nagar, Kovilpatti - 628 503, Tamilnadu, India

autor

Selvakumar N.

• Centre for Nano Science and Technology, Department of Mechanical Engineering, Mepco Schlenk Engineering College, Sivakasi - 626 005, Tamilnadu, India

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)