Microstructural characterization of nitrided beta Ti-Mo alloys at 1400 °C

In this work, the two Ti92Mo8 and Ti84Mo16 alloy compositions were gas nitrided at 1400 degrees C. The microstructure and the chemical composition of the gas nitrided surfaces were investigated by scanning electron microscopy and by electron probe microanalysis. Two internal needle-like nitride precipitates, alpha-(Ti,N) and delta-TiN0.3, were observed. Their crystallographic orientation relationships in the beta matrix were determined by electron backscattering diffraction. (C) 2009 Elsevier Inc. All rights reserved.