Bioinspired Aluminum Composite Reinforced with Soft Polymers with Enhanced Strength and Plasticity


Composites have played a key role in revolutionizing the automobile, marine, and aerospace industries. There is a constant attempt for the development of low‐density composite materials with superior mechanical and corrosion‐resistant properties for elevated temperature applications. Herein, an attempt is made to develop a nature‐inspired unique aluminum‐based composite with low‐density polymer (polyethylene terephthalate, i.e., soft material) reinforcement, which shows an enhancement in strength and toughness. The composite is processed using the easily scalable and simple friction stir processing technique. Mechanical properties of the uniformly reinforced aluminum composite show double ultimate strength and fivefold improvement in plasticity. The ultimate strength of the composite increases at elevated temperatures. The experimental observations are further supported by theoretical calculations and molecular dynamics simulations.

Advanced Engineering Material (2020)
A. Rout, A. Gumaste, P. Pandey, E. F. Oliveira, S. Demiss, V.P. Mahesh, C. Bhatt, K. Rahael, R. S. Ayyagari, P. A. da Silva Autreto, M. Palit, F. Olu, D. S. Galvão, A. Arora, and C. S. Tiwary. “Bioinspired Aluminum Composite Reinforced with Soft Polymers with Enhanced Strength and Plasticity”. Advanced Engineering Materials (2020).
Arpan Rout
MBA student in Business Management (BM)

Arpan works on joining of dissimilar joining of materials by friction stir welding. Additionally, he is also interested in fabrication of metal matrix composites by friction stir processing. He carries mechanical, microstructural, corrosion and wear studies. Arpan joined our group in 2017 during his M.Tech and thereafter continued as a Ph.D. student.