Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Development of iron aluminide coatings on steel substrates
Submission Author:
Gabriela de Andrade Oliveira , MG , Brazil
Co-Authors:
Gabriela de Andrade Oliveira, Fernanda Christina Teotonio Dias Troysi, Norberto Martins, Ana Paula Silva, Pedro Augusto Ramos, Magdalena Walczak , Cristiana Brasil Maia, Pedro Paiva Brito
Presenter: Gabriela de Andrade Oliveira
doi://10.26678/ABCM.COBEM2021.COB2021-1392
Abstract
Iron aluminides are intermetallic alloys that have been investigated since the 1930s as potential materials for high temperature applications because of their low production cost, elevated strength to weight ratio, wear resistance and excellent high temperature oxidation and corrosion resistance. The low ductility and susceptibility to environmental embrittlement has limited the options for manufacturing of components and inhibited the widespread use of iron aluminides. For these reasons, several processes for developing iron aluminide coatings on conventional steel substrates have been developed, such as: thermal spraying, electrodeposition, laser and plasma alloying, as well as aluminizing followed by diffusion treatments. All these manufacturing processes have their peculiarities both in terms of the final results obtained and regarding the manufacturing process parameters. In the present contribution, a critical survey on the different manufacturing processes applied for the deposition of iron alunminide coatings is presented. The main characteristics (thickness, mechanical properties, phase composition) of current iron aluminide coatings are compared with a novel friction based solid-state deposition process.
Keywords
Iron aluminides, Coatings, Friction Surfacing, thermal spraying
