Teixeira, Silvio Rainho [UNESP]de Anchieta Rodrigues, JoseMascarenhas, Yvonne Primerano2014-05-272014-05-271993-04-13Journal of Alloys and Compounds, v. 194, n. 1, p. 53-57, 1993.0925-8388http://hdl.handle.net/11449/130529Plates of NbTi (50:50, by weight) were nitrided in a nitrogen atmosphere in the temperature range 800-1000 °C for 15, 30, 60, 120 and 180 min. X-Ray diffraction and optical and electronic microscopy were used to characterize the samples. Two nitride layers were identified on the substrate: an external and continuous phase of TiN, named δ, and a deeper and discontinuous phase of Ti 2N, named ε{lunate}. The electron micrographs reveal the presence of paths rich in Nb which may be responsible for the diffusion of nitrogen into the matrix. © 1993.53-57engArtigo10.1016/0925-8388(93)90644-3WOS:A1993KW47700013Acesso restrito2-s2.0-00275743469256541983393135