MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202641072825 A) filed by Dr. Md. Ahasan; Dr. Murahari Kolli; Kosaraju Satyanarayana; Dr Aruri Devaraju; and Dr Ch. Shashikanth on June 12, 2026, for Snail Sheel Powder Addition To Al Alloy Developed A Surface Composites Through Fsp.
Inventors include Dr. Md. Ahasan; Dr. Murahari Kolli; Kosaraju Satyanarayana; Dr Aruri Devaraju; and Dr Ch. Shashikanth.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: The present invention relates to a method for developing aluminum alloy surface composites reinforced with snail shell powder through friction stir processing (FSP). The method comprises collecting and cleaning snail shells, drying and calcining the shells to remove organic matter, pulverizing and sieving the calcined shells to obtain fine snail shell powder, machining one or more grooves in the surface of an aluminum alloy substrate, filling the grooves with the prepared powder, and subjecting the filled region to friction stir processing using a rotating non-consumable tool. During processing, frictional heating and severe plastic deformation produce dynamic recrystallization and uniformly distribute the snail shell particles within the surface layer of the aluminum alloy, thereby forming a reinforced surface composite. The resulting composite exhibits improved hardness, wear resistance, and surface mechanical properties while maintaining the bulk characteristics of the substrate. The invention provides an environmentally sustainable and cost-effective alternative to conventional ceramic reinforcements by utilizing bio-waste snail shells, which are composed predominantly of calcium carbonate. The method is suitable for aluminum alloys such as AA6061, AA6082, AA7075, and AA2024 and can be applied to automotive, aerospace, marine, and industrial components requiring enhanced surface durability.
Disclaimer: Curated by HT Syndication.
