Self-lubricative performance of laser processed graphene structures for space applications via digital twin approach

Self-lubricative performance of laser processed graphene structures for space applications via digital twin approach

This study explores the tribological performance of Al 6061, Al 6061-Graphene, and Al 6061-Graphene-LSP under varying load, temperature, and vacuum conditions. The results show that graphene reinforcement and laser shock peening (LSP) significantly reduce friction and wear loss. Al 6061-Graphene exh...

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Bibliographic Details
Main Authors: Praveen Kumar Kanti, Prashantha Kumar H. G, V．Vicki Wanatasanappan, Hanen Karamti, Vijayalaxmi Mishra, Majed Alsubih, Prabhu Paramasivam, Abinet Gosaye Ayanie
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Results in Engineering
Subjects:
Graphene
Laser shock peening
Self-lubricative
Vacuum
Digital twin
Future proof
Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025005456
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Summary:This study explores the tribological performance of Al 6061, Al 6061-Graphene, and Al 6061-Graphene-LSP under varying load, temperature, and vacuum conditions. The results show that graphene reinforcement and laser shock peening (LSP) significantly reduce friction and wear loss. Al 6061-Graphene exhibited 22 % lower wear loss and 26 % reduced friction at 100 N load compared to Al 6061. Al 6061-Graphene-LSP demonstrated a 44 % reduction in wear loss and 42 % lower friction. Under vacuum conditions, Al 6061-Graphene-LSP showed 60 % lower wear loss. Digital twin approach by machine learning, particularly Extreme Gradient Boosting (XGBoost), achieved an R² score of 0.92, confirming the model's accuracy in wear loss prediction. These findings highlight the potential of Al 6061-Graphene-LSP for aerospace applications requiring low friction and high wear resistance.
ISSN:2590-1230

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