Avaliação da deposição da mistura de pós de níquel e alumínio depositados pelo processo de aspersão térmica chama a pó

Abstract

For each type of aggressive atmosphere, such as, corrosive environments, high temperature and mechanical stresses, the development of specific alloys are required, which have properties compatible advocates the means to withstand the various conditions of effort required. The research in question aimed to produce and study intermetallic formed in situ through the AT Draws powder process. Which was deposited by gravity a mixture of powders (50% Ni and 50% Al) in carbon steel substrates 1020, and by the results obtained by Vickers microhardness testing and analysis made by optical microscopy techniques diffraction raio- x was possible to form a homogeneous coating of intermetallic which is resistant to oxidation and resistant to high temperatures.