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Laser Cladding of Fe- and Ni-based Amorphizable And Nanocrystalline Alloys and Self-Lubricating Composites.

Grant number: 15/22940-0
Support type:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): January 10, 2016
Effective date (End): July 09, 2016
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
Principal researcher:Conrado Ramos Moreira Afonso
Grantee:Marcos Fernandes de Carvalho
Supervisor abroad: Armando J. Yanez Casal
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Research place: Universidade da Coruña (UDC), Spain  
Associated to the scholarship:14/13432-9 - Coatings of steel made of wear resistant nanocrystalline and amorphizable iron-based alloys, BP.PD


The laser processing of advanced metallic materials brings a lot of advantages when compared with the conventional processing routes of metallic materials, such as, increasing of productivity, reduction in operational costs, quality improvement and finishing of products, wider flexibility in production lines and amplifying project possibilities and application opportunities. The surface treatments through laser that result in phase transformations solid state and the production of coatings for advanced applications in order to improve wear and corrosion resistance, are characterized as one of the main materials processing alternatives that brings together the possibility of obtaining, refined microstructures, metastable, nano and quasicrystalline and amorphous structure, with significant improvements in properties of metallic alloys when compared with commercial alloys or crystalline slowly solidified though conventional metallurgical processing routes. The objective of this project is the obtaining of amorphizable and nanocrystalline multicomponent Fe- and Ni-based metallic alloys through laser surface treatment and laser cladding in alloys processed by spray forming in the different products obtained, deposit and overspray powder, respectively. Then, it will be tested composites of the overspray amorphous powder of Fe-based mixed in different percentages with self-lubricating material, in order to evaluate the possible increase of wear resistance through the diminishing of friction coefficient of the coating.The execution of this proposal will be associated to a "Thematic" Project of FAPESP (Nº: 2013/05987-8) in our research group Lab (Amorphous and Nanocrystalline Alloys) the possibility de establish a new research area at the DEMa/UFSCar regarding materials processing through Laser.

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